Copyright: University of Illinois at Urbana-Champaign
Citation: NCSA Mosaic Help v3.0


Mosaic Help Contents

NCSA Mosaic

NCSA Mosaic is an Internet navigation and data retrieval tool.  It makes access to network information as easy as clicking a mouse button.  Mosaic is capable of accessing data from World Wide Web servers (HTTP), Gopher servers, FTP servers and Usenet News servers (NNTP).  Mosaic can also access other data sources and services through gateway servers.  These services provide search capabilities in database environments such as PH, Archie, WAIS, and Veronica.  NCSA Mosaic provides transparent access to these information types.  NCSA Mosaic software is copyright by The Board of Trustees of the University of Illinois (UI), and ownership remains with the UI. The UI grants you a license without a fee to use the Mosaic software for personal, academic, research, United States government and internal business purposes.  Mosaic is designed to operate under the following Microsoft Windows environments.

Windows 3.1x, Windows for Workgroups 3.1x, Windows 95, Windows NT 3.5x

Use this help file by clicking on the above image or select a topic from the index.


NCSA Mosaic Menus

Mosaic Menus


NCSA Mosaic Icons
Mosaic Icon Area

These are the iconbars that are available in NCSA Mosaic.

NOTE: Not all of the bars will be seen at all times.


MOSAIC TOOLBAR

Open Document	Opens the Open Document Location dialog

box (see also FILE MENU).

Save to Disk	Saves the current document to disk.

(see also FILE MENU)

Print	Opens the Print dialog box.

(see also FILE MENU)

Print Preview	Opens a preview copy of the current document.

(see also FILE MENU)

Copy	Copies the selected text to the clipboard.

(see also EDIT MENU)

Paste	Pastes the contents of the clipboard into the

active window(see also EDIT MENU).

Find	Opens the Find dialog box.

(see also EDIT MENU)

Search Cache	Opens the dialog box to search the cache.

Manager Views	Toggles the Manager view area on and off.

Help	Opens this help file.

 	Back	Displays the previous document in the history list.

(see also NAVIGATE MENU)

 	Forward	Displays the next document in the history list.

(see also NAVIGATE MENU)

Don’t Reload Images	Reloads a page without the images.

 	Reload	Reloads the current document.

(see also NAVIGATE MENU)

Load Home Page	Loads your home page that you specified in your

preferences

Stop Transfer	Stops the current transfer.

Read Newsgroups	Loads a list of the subscribed newsgroups.

(Click here for more info)

Send Internet Email	Opens the Mail dialog box.

Add Current to Hotlist	Adds the URL and title of the current document to

the current hotlist.


LINK TAG ICONS

These icons are displayed if a page has a link tag.  Link tags are created through HTML to create easier access to related homepages.


LOCATION BAR

The Internet “address” of the current document - its URL - appears in this field, which is located to the left of the NCSA Mosaic Logo.  The check mark and X are active only if you are working in the field.

Cancels the input of a new documents address and returns to the address of the present document.

Opens a new document; enter a document address in the field and either click on the check mark or

press ENTER.

Location field - the current document’s address.

Click to display a linear list of all URLs visited during the current session.

If you don’t see the location bar, right click on the toolbar area and make sure the Location Bar item is checked.


NCSA Mosaic Logo

The NCSA Mosaic logo serves several purposes.  The globe is startionary while you are reading a document and starts to spin when you request a file.  It continues to spin as long as NCSA Mosaic is connecting to a server or working on a file transfer.

The globe is a transfer interrupt mechanism.  Cancel the transfer of a file at any time by clicking on the globe with the left mouse button.  (Pressing the ESC key also cancels a transfer.)

The Mosaic logo is a toggle - it is displayed only when the location bar or toolbar are active.  The size of the logo changes depending on the number of bars you have displayed.  The logo is largest when both the location bar and the toolbar are displayed.

If it does not appear, right click on the icon area and make sure NCSA Globe is checked.


News Toolbar

The Mosaic News toolbar contains quick links to a variety of functions.  A tool’s function is only available when the icon is colored.

The tool bar also contains tool tips that describe a button’s functionality.  The tool tip feature works automatically:  place your cursor over the tool button and after a second a small window pops up with a description of the button.

The toolbar can be moved.  Point to an open area within the toolbar and left click.  By holding the left mouse button down, you can move the toolbar to any edge of your screen or it can stand alone outside of the Mosaic window.  By default the toolbar appears at the top left corner of the document view window.

Previous article.

Next article.

Previous topic.

Next topic.

Post a new article to the current newsgroup.

Publicly reply to a newsgroup article(follow-up).

Privately reply to the author of a newsgroup article.

Display the current newsgroup’s article list.

Find.

Find next article.

Mark all articles as being read in the current newsgroup.

Next newsgroup.

Previous newsgroup.

Read newsgroups, which returns you to your newsgroup list.

Open a news subscription window to add or delete newsgroups.


Manager View
The Manager View

This is the basic configuration of the Manager View Area.  In this part of Mosaic, you can view a document’s source, view the cache, view your hotlists, view your session history, and view the help files both locally and online.


Load Session

Loads a previously saved session.


Save Session

Saves the current session.


Session History
The Session History Manager View

The Session History View allows the user to see where they’ve been on their current session.  The user may delete items, and by going to the history manager menu the user may save and load old sessions.  Hitting the right button in this area will give the user the following box:


Session Manager Viewing Area

This is where your session will be shown.  Click on the ‘+’ box to expand an area and a

‘-‘ box to close it.  Double click on a page name to go to it in the Document View Area.


Session Manager File Area


Expand All

Expands the entire session history so that you can see all of the pages you’ve been to.


Close All

Closes the session history so that only the main pages are shown.


Delete

Delete the highlited page from the session history.


Properties

Displays the title, URL, and date of the highlited page.


History Manger Preferences


Specifies the maximum number of pages that will be recorded in a session.


Specifies whether the items that were children of a deleted item will be deleted as well.


Specifies whether or not a specific history session will be loaded upon Mosaic’s startup.


Determines the file to be loaded upon starting Mosaic.


Determines whether or not the last page you were on in your history session will be the first one shown upon the start of Mosaic.


Source Manager
The Source Manager View


Change Font

Changes the font of the source manager view characteristics.


Allows you to save and edit the current home page.  This changes to save and view afterwards,  allowing you to view any change you’ve made.


This is where the html is displayed and can be edited.


Hotlist Manager View

The Hotlist Manager View


Open Hotlist

Opens an existing hotlist with a *.hot extension.


New Hotlist

Closes the existing hotlist and creates a new, empty one.


Save Hotlist

Saves any changes to the current hotlist.


Hotlist Save As

Allows a hotlist to be saved as an html or .hot file.


Import Html File

Converts an html file to the hotlist format.


Import Anchors From Current

Adds the all of the anchors from the page you are viewing to the hotlist.


Export To Html File

Exports the hotlist to an html file of your specification.


Properties

Displays the Title, URL, and date of a highlited item in the hotlist.


Delete

Deletes an item from the hotlist.


Insert New Item

Allows you to manually insert a new URL into the hotlist.


Insert New Folder

Creates a new folder in your hotlist.


Add Current to Hotlist

Adds the current page you are viewing to the folder specified in the add to box in the hotlist manager view.


Open On Startup

Opens the current hotlist at the start of Mosaic.


On Menu Bar

Adds the hotlist to the menu bar.


One Root

Determines whether or not all of the folders will be displayed on the menu bar.


Change Font

Changes the font of the items in the hotlist.


Opens All Folders

Opens all of the folders in the hotlist.


Close All Folders

Closes all of the folders in the hotlist.


Alphabetize

Alphabetizes either all of the folders in a hotlist or just the current folder.


Autosurf

Autosurfs either the current folder or the entire hotlist.


Update Time Stamps

Updates the last time either all of the items or just the items in the highlited folder were viewed to the current date and time.


What’s New

Determines which of the pages have been updated.

 means that a page has been changed.

means that it doesn’t exist anymore.

means that it was unable to determine anything.


What’s New Since

Determines which pages which pages have been updated.


Remove Items That Don’t Exist

Removes all item in the hotlist denoted by [image].


Find

Finds a keyword in the hotlist.


Find Next

Finds the next instance of the specified keyword in the hotlist.


Contents

Goes to the hotlist manager help contents.


Search For Help On

Searches the hotlist manager help file for specific information.


How To Use Help

Goes to the standard info screen on how to use help.


This is where the hotlist folders and items are displayed.  Double click a folder to open or close it, and double click an item to view it in the document view area.


Enter the folder that will receive new items here.


Specifies the current hotlist being used.


The Cache Manager View


Search Cache

Searches the cache for a specified item.


Delete All

Deletes all of the items in the cache.


This is where items in the cache are displayed.  Click on the ‘+’ box to expand an area and the‘-‘ box to close it.  Double click on a page name to go to it in the Document View Area.


The Help Manager View


Document View Area

Documents are displayed in this area, including inlined images, graphics, and forms.  Use either keyboard commands or the mouse and scroll bars to move a document in the window.

KEYBOARD COMMANDS

Up and down arrow keys	Scrolls up and down on line respectively.

Page Up	Scrolls up one page.

Page Down	Scrolls down one page.

Home	Scrolls to the top of the document.

End	Scrolls to the bottom of the document.

SCROLL BARS

One or two scroll bars may be available in a document view window:

-	A vertical bar along the right side of the document viewing area if the document is

too long for the available space.

-	A horizontal bar along the bottom edge of the document viewing area if the

document is wider that the document display area.

These scroll bars work exactly like the scroll bars that commonly appear in Microsoft Windows applications.  Click in the scroll bar area on either side of the button to move the document in one page increments.  Click on the small arrow at either end of the scroll bar to move the document in one line increments.


FILE MENU


EDIT MENU


HISTORY MANAGER MENU


HOTLIST MANAGER MENU


SOURCE MANAGER MENU


VIEW MENU


NAVIGATION MENU


TOOLS MENU


HOTLISTS MENU

Any hotlist folders you have are displayed here.


HELP MENU


Hotlist Manager File Menu

HOTLIST MANAGER MENU


Hotlist Manager Edit Menu

HOTLIST MANAGER MENU


Hotlist Manager Options Menu

HOTLIST MANAGER MENU


Hotlist Manager Search Menu

HOTLIST MANAGER MENU


Hotlist Manager Help Menu

HOTLIST MANAGER MENU


VIEW/OPTIONS MENU


Save As...

Saves the current document in its original format (i.e., HTML or Text (ASCII)).


Save As Text

Saves the current document in Text(ASCII) format.


Print……

Opens the Print dialog box; click OK and Mosaic passes the current page to the Windows print manager, which prints the document.


Print Preview……

Opens a window with a preview copy of the document to be printed.


Exit……

Closes the window and exits NCSA Mosaic.


Open Local Files…..

Opens a standard Windows Open dialog box to open a file on your local system; select the file by moving through the Windows interface and click OK.


Open Document……

Opens the Open Document dialog box where you enter a document address.


Print Setup….

Opens the standard dialog box where you choose from several print options.


Copy…..

Copies the highlighted text to the clipboard.  Text can be selected in the Document View window, location bar, the Document source dialog box, and text entry fields in various interactive windows(e.g. the Open URL dialog box).


Paste….

Pastes the selected text at the current cursor position;  text can be pasted into the location bar field, form fields, and various dialog boxes(e.g., Find).


Find…..

Opens the Find dialog box.  Enter the characters, words, or phrases you want to search for in the current document in the Find What: field;  click Find Next to search for the pattern.  If your search is case sensitive, make sure you checked the Match Case box.


Find Next…..

Locates the next instance of the field you entered in the find dialog box.


Select All…

Highlights the text in the Document View window.


Mosaic Toolbar

When this is checked the following toolbar is displayed:


Web Toolbar

When checked, the following toolbar is displayed:


Mosaic Manager

Determines whether or not the Mosaic Manager screen is shown.


Location Bar…

Determines whether or not the following iconbar is shown:


NCSA Icon

This toggles the NCSA icon on and off.


Hotlink Bar

Determines whether or not the hotlink bar at the bottom of the Mosaic window is displayed.


Status Bar

This shows or hides the status bar.


Manager View Configuration

Goes to preferences where you can determine what’s in the manager view.


Hotlink Bar Configuration

Goes to a dialog box that allows you to add and remove items to the hotlink bar.


Button Text

Determines whether or not the icons in the iconbar area will have text underneath them.


Default Layout

Returns Mosaic to its default layout.


Refresh

Refreshes the screen.


Back….

Moves back one document in the history list; greyed out when there is no previous document.


Forward……..

Moves forward one document in the history list;  greyed out when the current document is the last one in the history list.


Reload…..

Reloads the current document.


Reload Text Only

Reloads the current document without any images.


Home…

Goes to the homepage specified in preferences.


Stop Transfer…….

Stops the current transfer from being completed.


Add Current to Hotlist…..

Adds the current page to the hotlist folder specified in the field on the hotlist iconbar.


Build Site Map…..

Choosing this option brings up the Mosaic AutoSurf dialog box, presenting you with the very same options.  While AutoSurf uses your options to download the proper documents into the Mosaic cache, Build Site Map creates a local HTML file outlining a list of links to those documents.  So, whereas AutoSurf allows you to view each of the documents locally, Build Site Map gives you links to view each of the documents online.


Mosaic Autosurf

Mosaic AutoSurf was designed to let you easily download a number of documents linked to a specific HTML document and save those documents in the disk cache.  AutoSurf is particularly useful if you are limited by a slow connection or if you pay per hour network access fees.  Using AutoSurf, you can cut your online time down significantly.

For example you could initiate AutoSurf from the NCSA What’s New page and let Mosaic download all the first level documents while eating your dinner or perhaps just a light snack.  After dinner or said snack you could view the files off-lineusing Mosaic’s built-in stand-alone option, mosaic.exe -s.

On choosing this item in the menu, you get a AutoSurf Setup Window.


AUTOSURF SETUP WINDOW


General Options

Maximum Depth:	Defines how deep AutoSurf will go before it

moves to the next link(Depth First Search)

or the maximum depth it travels during its

total search(Breadth First Search).

Maximum Number of Documents:	A number from 1-1000.  Only download a

useful number of documents.

Follow all Links:	Follows all links, on both the local and

remote servers.

Only Follow Links On Initial Server:	Restricts the AutoSurf to the initial server.

Don’t Follow Links on Initial Server:	Restricts links to those on remote servers

(not the current server).

Load Inline Image:	Downloads the inline images associated with

each document AutoSurf loads.

Display Documents(faster when off):	Displays the documents as they are being

downloaded.  For best AutoSurf

performances, disable this feature and view

the documents from the cache.


AutoSurf Output Log

Mosaic can maintain a log with detailed information about the results of a search.  You choose whether the log file is kept(select the None button if you don’t want a record of the search) and, if maintained, how it is presented.

The log file contains the information about the starting document, the maximum depth, the surf algorithm, the document addresses, the number of documents loaded, the number of errors, total elapsed time, and total number of bytes downloaded.

Mosaic can report the AutoSurf information in one of two formats:

HTML Format:	Writes the data as an HTML-formatted document.

Text Format	Writes the data into a simple ASCII file.

Log File	Defines the directory path and file name to the log file.


Surf Algorithm

You select the “surf method” that Mosaic uses when it downloads documents.  The search may be handled initially in breadth first or depth first order.  Consider the first document downloaded as level “0.””  How the search is conducted from level 0 is explained in the examples below.

Breadth First.  Suppose you select a Breadth First search with a Maximum Depth of 2 and a Maximum Number of Documents of 100.  Mosaic downloads the first page (L0), then goes to the first link (L1) and downloads that page.  Returning to the first page, AutoSurf goes to the second link (L1) and downloads that page.  After all links are downloaded on the first page, Autosurf goes to the first document on the second level (L2) and begins to download the documents linked to that page in the same fashion.  Mosaic continues to download documents until all of the second-level deep documents have been downloaded or the maximum number of documents has been met.

Depth First.  Suppose you select a Depth First search with a Maximum Depth of 2 and a Maximum Number of Documents of 100.  In this case Mosaic downloads the first page (L0) and then goes to the first link and downloads that page (L1).  It then goes to the first link on L1 and downloads that document (L2).  Next it goes to the second link on L1 and downloads that document.  AutoSurf continues until all links are exhausted and then proceeds to the second link on the first documents and downloads the documents associated with that link.  Mosaic continues to download documents until the end of the search is reached or the maximum number of documents is met.


NewsGroups

The Mosaic news interface lets you to interact with a newsgroup as if you were using a dedicated news reader, and it maintains a record of the messages you have read.  It also displays messages and follow-up messages in hierarchical format.  Mosaic lets you subscribe to newsgroups, post messages to newsgroups, follow-up posted messages, and reply to the author of a news message.

By default Mosaic uses the news server defined in the Preferences/News sheet as the source of newsgroups and messages.  In this sheet, the NNTP Server:field specifies this.

You access newsgroups in one of three ways:

1. 	Configure Mosaic to remember specific news groups.  When you click on the news icon in the toolbar or select Newsgroups from the Tools menu, your chosen newsgroups are displayed in the document view window as hyperlinks with the number of unread articles displayed.

1. 	Access newsgroup directly by entering a URL in the command line using the syntax news:name of newsgroup.  For example:

     news:comp.infosystems.www.users

1. 	If you have access to another news server and you want to read a particular newsgroup

      that is available only from that server, use the following URL syntax to access the

      server:

      nntp://name.of.server/name.of.newsgroup

Click here to learn more about the news icon bar.


Send Email

Opens the Mail… dialog box.  Enter the address of the receiver, the subject and the contents of your mail message;  click OK to send the mail message.


Hotlists…

Your hotlist folders and items are displayed here.


Contents

Opens the first page of the Mosaic help file.


Search for Help On

Opens a search window to locate information in NCSA Mosaic’s help files.


How To Use Help

Opens the standard Windows help tutorial.


Online Resources

Opens a local HTML file that contains links to online resources;  this file, resource.htm, is in the same directory as the NCSA Mosaic executable.


About Mosaic

Information on the current version, copyright statement, and a list of the current software developers.


Mail Technical Support

Opens the Mail Technical Support window where you can send email to the NCSA Mosaic for Windows technical support staff;  automatically includes your system information within the email.


Cache manager menu


Preferences Document Sheet

Mosaic Preferences: Document

Click on the image for help.


Display Inline Images

Enables inline images to appear within an HTML document.  When blank, inline images and background images are not shown.  Inline positions are held by an [image] icon and alternate text is displayed if it is available.

3D Borders

Surrounds all inline images with a three-dimensional border.


Background Color

Opens a color palette where you can select a new color for the default background color of the document view window.


Miscellaneous

3D Rules

Displays horizontal rules ( <HR> ) as three-dimensional lines instead of solid black line.

Round List Bullets

Displays a 3D bullet at the beginning of each list item in an unordered list ( <UL> )

or menu list ( <MENU> ).  A dash is displayed if this option is not selected.

Send Referrer Field

Mosaic will send the URL of the page you came from when you contact a

server for information.  Referrer allows WWW sites to determine where the

majority of the Web traffic is coming.  The referrer URL is not sent if you do

not select this option.


Home Page

Autoload

Mosaic automatically loads your defined home page.

The address to your home page is defined by a URL. The home page file is written in

HTML (HyperText Markup Language).  This file can reside on the network or it can be

local file on your system.  The URL address for a local file is defined in this format:

file:///c:/directory/filename.htm

Use Current

Click on this button and Mosaic will automatically save the URL of the present document as your home page.


Advanced Tags

Use <BODY> Attributes

Display background images using the HTML 3.0 <BODY BACKGROUND =

”image.gif”> attribute.

Use <META> Tag

Allow Mosaic to be automatically prompted to another page.

Prompt Before Using <META> Tag

Prompt user before allowing Mosaic to change pages.


Display

Display Text while Loading

Displays the document while it is being downloaded.

Display Images While Loading

Displays in-line images after they are downloaded and while Mosaic is downloading other images.

Disable Display While Loading

Forces Mosaic to wait until the document and all images are downloaded before it is displayed.


Preferences Fonts Sheet

Mosaic Preferences: Fonts

Click on the image for help.


Mosaic Font Groups

Displays the names of the font groups available to Mosaic.  To view the contents of a group, double-click on the group name.

Default

The default font group.


New

Click and enter the name of a new font group.  Click the check to create a new

font group or click the X to cancel and close the window.

Note:  The initial settings for a new font group reflect the current settings in

the default group.

Remove

Deletes the selected font group

Edit

Changes the name of the font group.

Change

Select a font and click to change the font type, size, or color.


Current Font Group:

Select the font group you want Mosaic to use.

Magnification Units:

The value from 1 to 5 that is used to multiply the size of the font using the

“+” or “-” key.


Preferences Printing Sheet

Mosaic Preferences: Printing

Click on the image for help.


Margins

Allows you to define print margins in terms of inches.  The default setting is 0.50

or ½ inch.  Enter “0” to disable print margins.

Left:

Defines the size of the left margin.

Right:

Defines the size of the right margin.

Top:

Defines the size of the top margin.

Bottom:

Defines the size of the bottom margin.


General

Print Document Title

Prints the title of the document as defined in the <TITLE> tag.  The title appears

at the top and centered on the page.

On First Page

The title is only printed on the first page of the document.

On Every Page

The title is printed on every page of the document.

Print Document Location

Prints the document location in the lower left hand corner of the printed document.

Print Page Numbers

Prints the page numbers in lower right hand corner of the document.  The page

numbers are displayed in terms of the present page with respect to the total

number of pages.  (e.g., 1  of  5)

Print Date

Prints the date the document was printed.  The date stamp appears in the lower

right hand corner of the document and to the left of the page number.

Print Time

Prints the time the document was printed.  The time stamp appears in the lower

right hand corner next to the date stamp and to the left of the page number.


Preferences Tables Sheet
Mosaic Preferences: Tables

Click on the image for help.


Table Display Options

3D Tables

Displays table borders with a 3D frame affect.

Recessed Tables

Inverts the 3D frame border to give the table a recessed appearance.

Display Empty Cell

Displays each empty cell instead of making them appear as part of the frame.


Table Color Settings

Red: Green: Blue:

Displays the current RGB color value of the table frame.

Change

Opens a color palette where you can select a new color for the table frame.


Preferences Window Sheet

Mosaic Preferences: Window

Click on the image for help.


Manager View

Global History

When checked, the global history tab appears in the Manager View window on startup.

Session History

When checked, the session history tab appears in the Manager View window on startup.

Cache Manager

When checked, the cache manager tab appears in the Manager View window on startup.


Date/Time

Mosaic displays the Day/Date/Time information in the progress indicator section of the Status bar when Mosaic is not loading files to the document view window.

Display Day

Display the current day:  Mon, Tue, Wed, Thu, Fri, Sat, Sun

Display Date

Displays the current date:  Month/Day/Year

Display Time

Displays the current time:  Hours/Minutes/Seconds.


Initial Window Placement

Defines the X & Y coordinate of the top left corner of the window and the width and height attributes of the Mosaic window.  These settings define the size and location of the Mosaic window when you start the program.

Use Current Window Position

Click and Mosaic saves the current window position and size as the default settings.


Preferences Cache Sheet

Mosaic Preferences: Cache

Click on the image for help.


Memory Cache

Number of documents kept in memory:

The number of documents maintained in memory cache during a Mosaic session

The memory cache is volatile.

Clear Memory Cache

Click on this button to clear the memory cache of all documents and images.


Disk Cache

Location:

Defines the entire path to the directory used to store the non-volatile disk cache.

Size (KB):

Defines the number of KBs allocated to the disk cache (1M = 1024KB)


The following options are active when the boxes are checked.

Enabled:

Disk cache is enabled.

Fast Image Caching:

Converts cached in-line images into a .bmp format, which increases the

display speed of the in-line image when they are loaded from the disk cache.

Never purge home page:

The home page is always available from the disk cache.

Clear Cache on Exiting Mosaic

Mosaic clears the disk cache when you exit the program.

Check Modification Date From Server:

Ensures Mosaic displays the most current version of a document.  Mosaic requests the file size and date stamp from the server and if the file has not changed, Mosaic loads the file from the disk cache.  If the file has changed, Mosaic requests the document from the information server.  You can also set Mosaic to check the documents currentness once per session or every time it loads a document.

Click “Once Per Session” if you want Mosaic to check the time stamp once

during your current session.

Click “Always” if you want Mosaic to check the time stamp every time you

go to a page.


Cache Purging Weights

The slider can be set to give certain preference to which items in the cache are purged.  If the slider is set all the way to the left (giving full weight to “Hits”), the purged items will be those in the cache which have been hit least often.  If the slider is set all the way to the right (giving full weight to “Time”), the purged items will be those in the cache which have been hit least recently.  Likewise, a slider setting somewhere in the middle will give purging weight based proportionately.


Preferences Directories Sheet
Mosaic Preferences: Directories

Click on the image for help.


Default Download Directory

Defines the path to the default directory where Mosaic will save all files you download from the network.

Global History File

Defines the path and file name of the global history index (.ghi) file.  To clear the global history, click “Clear” in the visited anchors section of the anchor preference window.

News Index File

Defines the path and file name to the news.lst file.  This file contains the titles to the various Newsgroups available from your news server.  This file is created by Mosaic when you configure the News preference sheet and select the subscriptions button..


Preferences Audio Sheet
Mosaic Preferences: Audio

Click on the image for help.


Mosaic Audio Events

The following audio events can be mapped to wav audio files on your system.

Abort

Left mouse click on the Mosaic logo or pressing the ESC key.

About Mosaic

From the Help menu, About Windows Mosaic... or the Question Mark in the Tool Bar

Add to Hotlist

The Add to Hotlist icon in the toolbar or open the Hotlist Manager (Navigate, Hotlist Manager) and select Edit, Add Current at Selection Point

Load Document

Select the green check next to the URL command or press ENTER.

Navigate Back

Select the left arrow icon from the toolbar or Navigate, Back.

Cancel Location

Select the red X next to the URL command line.

Copy

Select a range of text in a document and the Copy icon from the toolbar or CTRL+C

Document Loaded

Audio notification when Mosaic has received and loaded the document into the document view window.

Find

Select the Find icon from the toolbar or Edit, Find

Navigate Forward

Select the right arrow icon from the toolbar or Navigate, Forward

History

Select Navigate, History

Home

Select the House icon from the toolbar or Navigate, Home

Image Loaded

Audio notification when Mosaic loads an image into the document view window.

Mail

Select the Mail icon from the toolbar, or use File, Send Email... or enter mailto:name@address in the URL command line.

News

Select the News icon from the toolbar, or use File, Newsgroups... or enter news:newsgroups into the URL command line.

Open

Select the Open URL icon from the toolbar, or by selecting File, Open URL...

(CTRL+O) or File, Open Local File... (CTRL+L)

Paste

Select the Paste icon from the toolbar or Edit, Paste (CTRL+V).

Preferences

When you select Options, Preferences...

Presentation Mode

Select Options, Presentation Mode (ALT+P)

Print

Select the Print icon from the toolbar or select Edit, Print...

Print Preview

Select the print preview icon from the toolbar or File, Print Preview...

Reload

Select the reload icon from the toolbar or Navigate, Reload

Save

Select the save icon from the toolbar or File, Save As...

Startup

Mosaic greets you when you start the application.


WAV Files:

Click on an event and Mosaic displays the audio file that is mapped to the

event.  This section also lists the WAV files that are available from the current

directory.  The current directory appears at the bottom of the WAV file list.

Test

Click to test the highlighted WAV file.


Sound Scheme File:

Displays the entire path to the sound scheme file(.SND).  These files are created by Mosaic when you make sound/event associations and they maintain the mapping information between the Mosaic events and the audio files.  This file is typically found in the C:\Mosaic\audio directory.

Save As

Saves the current collection of events and associated sound files in a SND file.

Load

Loads another specified SND file.


The following options are active when the boxes are checked.

Enable Event Sounds

Enables the Mosaic Audio Events.

Asynchronous

Allows sound events to be interrupted.

Enable Inline Sound

A new HTML tag not yet approved by the HTML working group.  This tag enables the use of WAV files for in-line sound.  Inline sound file can be placed in any part of the document or you can define a background sound.  Inline sounds can also be delayed for X number of seconds.  The tag associated with in-line sound is:

<SOUND SRC="*.wav">

Attributes of the sound tag include:

LOOP=infinite  and  DELAY=sec.

e.g., 	<SOUND SRC="*.wav" LOOP=infinite>

    or

<SOUND SRC="*.wav" DELAY=10>


Preferences Viewers Sheet

Mosaic Preferences: Viewers

Click on the image for help.

NCSA Mosaic for Microsoft Windows can use other applications to display file types such as, Microsoft Word, Postscript,  MPEG movies, Quicktime movie, etc.   These applications can be commercial software, Shareware, Freeware or copyright software.  We refer to these applications as external viewers.  In general, if an application can accept command line inputs, Mosaic can use it as an external viewer.  When Mosaic downloads a file that it cannot display, Mosaic can pass the file to an external viewer and this application will display the file to you. For example, if you have Microsoft Word, you can configure Mosaic to pass all files that have the MIME (Multipurpose Internet Mail Extension) type of  “application/msword” or files extended with “.doc” to your Microsoft Word application.

For more information about MIME types, available viewers and configuring Mosaic to use specific viewers, select on-line Resources from the Help menu and click on the Viewers link.


Associate MIME Type of:

Displays the MIME types and subtypes.  Click on the arrow button to view the current list of MIME types.

CAUTION:  If you edit information in this field, it will change your view configuration.


Description of MIME Type (Optional):

A description of the MIME type displayed in the above field.


With This/These Extensions:

Enter the file extension(s) associated with the MIME type displayed in the Associate MIME Type of: field.


To this Application:

Enter the path and the executable name of the external viewer. Make certain the

application software is capable of handling the MIME type. Use the Browse...

function to create this association.

Browse...

Opens the standard Windows tree format dialog box for viewing your directories and files. Find the appropriate application software and click OK.  Mosaic then fills in the appropriate information in the To this Application: field.

Specify “internal” to display image/??? Or audio/?wav objects within Mosaic

Mosaic can internally handle the following MIME types if you define the “To This Application:” field as “internal” for each MIME type.

audio/wav

audio/x-wav

image/gif

image/jpeg

image/bmp


Add

Click to add a new MIME type to the MIME type list.

Remove

Click to delete the MIME type that is displayed and all associated information from your MIME type list.


Preferences News Sheet

Mosaic Preferences: News

Click on the image for help.


Display Options

There are three ways of displaying news articles.  Select one of the following choices.

Thread View

Display the top level messages without reply messages.

Group View

Display the top level message and the first level of replies.

Tree View

Display the top level and all replies in hierarchical format. (Replies to replies are represented at different levels of the hierarchy.)


Number of articles to load:

Defines the number of news article headers you want Mosaic to retrieve from the news server.  One Thousand is the maximum number.


Number of articles to display:

The number of News articles you want Mosaic to display in the document view window.  Ten is a minimum and One Hundred is a maximum.


NNTP Server:

Enter the name of the machine that provides your news services.

(e.g., news.ncsa.uiuc.edu)

Note:  Many news servers are restricted to certain domains.  Your Internet access

provider should provide you with the name of your local news server.


.sig file

Enter the path to your signature,(.sig), file.  This file is a text file that contains contact information about you and/or your organization.  This file is also used when posting a message to a newsgroup or mailing a message.


Show Toolbar

Displays an easy to use, dockable toolbar while you are reading news.  To dock the News toolbar, click on its frame and drag it to any of the four sides of the Mosaic window or to any position on the screen.


Load All Articles:

When checked, Mosaic loads all available news article headers for the newsgroup you select in Mosaic’s News interface.  This feature disables the “Number of articles to display:” feature.


News Subscriptions

Click on the image for help.


Search:

Enter the name or prefix of a newsgroup. Mosaic comparatively matches your entry to the available newsgroups in the list, scrolls through the list and displays its finding.


Available:

Displays the names of newsgroups that are available from your news server.  The available newsgroup list supports the standard Shift + Left click to select a range of items and/or Ctrl + Left click to select individual items.


Subscribe:

Adds the selected newsgroup(s) from the available field to the subscribed field.  Select a newsgroup from the available list, click subscribe to move the newsgroup to your subscribed list.

Unsubscribe:

Deletes the selected newsgroup(s) from the subscribed list and moves it back to the Available list.  Select a newsgroup in the subscribed list, click on unsubscribe to remove it from your subscribed list.


Subscribed:

Displays a list of the newsgroups to which you have subscribed..


Update:

Click update to query the news server for the latest list of available newsgroups.


Select All:

Selects every entry in either the Available field or the Subscribed field depending on the location of your cursor.

Unselect All:

Deselects the entries that were selected.


Preferences Proxy Sheet

Mosaic Preferences: Proxy

Click on the image for help.

Firewalls are employed by many organizations to protect their local area networks (LAN) from intrusion and to prevent unauthorized employees from leaving the LAN.  Unfortunately, firewalls also prevent NCSA Mosaic from retrieving documents from the Internet without the use of a proxy gateway.

A proxy gateway allows Mosaic to request information from the Internet through a computer running proxy gateway software.  The proxy gateway, (or proxy server), receives a request in the form of a URL from a Mosaic client running inside the firewall and makes the actual network request on behalf of the Mosaic client.  The proxy server receives the data and sends it to the requesting Mosaic client.  Typically the machine running the proxy server is the only machine directly connected to the Internet. After you configure Mosaic to use a proxy server, you should feel as though you were directly connected to the Internet.

Not all organizations use firewalls and/or proxy gateways.  Contact your local system administrator to determine if you need to use a proxy server to gain access to the Internet.


Enter the name and the port number of the machine that is providing the proxy services. Your system administrator should be able to tell the name of the machine running the proxy gateway software.  Typically, one machine provides proxy services for all of the defined protocols.  If you not have access to one of the following protocols, leave the field blank.

Proxy Server Configuration Example:

HTTP Proxy Server:	proxy.ncsa.uiuc.edu:8080

FTP Proxy Server: 	proxy.ncsa.uiuc.edu:8080

WAIS Proxy Server:

Gopher Proxy Server: 	proxy.ncsa.uiuc.edu:8080


Machine/Domain List:

Displays a list of network domains that are affected by proxy services.  If you are behind a firewall and have a local web server, you could mark this domain as “no proxy” and improve the performance of local information retrieval.  Since all other domains will need to go through the proxy gateway, you could mark the all others field for proxy services.  For example:

no proxy	ncsa.uiuc.edu

proxy	all others

NOTE:  You can switch the proxy/no proxy state of a machine or domain by double

clicking on its name in the Machine/Domain List.


Add

Enter the machine name or the domain name of a system you want to add to the Machine/Domain List.

Remove

Select an entry in the Machine/Domain List and click remove to remove it from the list.


Proxy

Associates the proxy status with the selected domain.  Select a domain name from the Machine/Domain List and then click Proxy to add use the proxy server to access information from this site.

No Proxy

Associates the no proxy status with the selected domain.  Select a domain name from the Machine/Domain List and click No Proxy to bypass the proxy server and access information directly from the site.

NOTE:  You can switch the proxy/no proxy state of a machine or domain by double

clicking on its name in the Machine/Domain List.


Preferences Services Sheet

Mosaic Preferences: Services

Click on the image for help.


Mail

Name:

Enter your name.

E-mail Address:

Enter your email address

SMTP:

Enter the name of your Simple Mail Transfer Protocol (SMTP) server.  Contact your system administrator or Internet access provider for the name of your mail server.


FTP

Use Extended FTP

Associates meaningful icons to directories and file-types on an FTP server.  Mosaic also displays the file size information.  When blank, Mosaic displays just the names of the files and directories.

External FTP Messages

Mosaic displays the messages generated by an FTP server in a separate window.

Inline FTP Messages

Mosaic displays the messages generated by an FTP server in-line with the file and directory data.  The messages are displayed at the top of each page.


Network

Timeout:

Enter the amount of time you are willing to wait for a Web site to make a connection with Mosaic.  Time-out is defined in seconds and is set to 60 seconds by default.

Threaded Downloads

If this option is checked, Mosaic will open multiple connections to receive files from the Internet server to which you are connected.  This allows more than one remote file (such as text or an image on a page) to be read simultaneously.  Selecting “Threaded Downloads” opens up the following two options:

Connections

This refers to the largest number of simultaneous connections (threads) you’d like

Mosaic to make to a server.  While you may choose to open up many connections

at one time, choosing too large a number may slow down each individual

connection.

Buffer Size

Enter the amount of memory you want to allocate for network data transmissions.

The size of the network buffer determines how much data can be received in such

a transmission.


Telnet

Enter the path of your Telnet application.  For example,

c:\directory\telnet.exe.

Click Browse, to open a standard Microsoft Windows browse window.  Find your

Telnet application, click OK, and Mosaic will fill in the above path information.

Telnet applications use either a colon or a space to distinguish a specific port number.

Select one of the options based on applications your needs.

Host:port:

When selected, Mosaic uses a colon to distinguish the port number as specified in the document URL field.

Host port:

When selected, Mosaic uses a space when you specify a port number.

After you’ve defined a Telnet application, you can use URLs in the following format:

telnet://johndoe@machine.name.com

Mosaic will launch the tn3270 program and query the defined machine for a login.

You can create a hotlist of easy access to remote machines.   ;^)


tn3270

Enter the path of your TN3270 Telnet application.  For example,

c:\directory\tn3270.exe

Click Browse, to open a standard Microsoft Windows browse window.  Find your telnet application, click OK, and Mosaic will fill in the above path information.

After you’ve defined a tn3270 application, you can use URLs in the following format:

tn3270://johndoe@machine.name.com

Mosaic will launch the telnet program and prompt the machine for johndoe’s login.

TIP:  You can add Telnet prompts to your hotlist by creating new “hotlist item” with the above information.


TCP/IP CCI Server

Enabled

Enables the TCP/IP CCI server.  Enabled allows programs to use the TCP/IP CCI command set to remotely control Mosaic.

The same TCP/IP CCI technology is used for Mosaic’s Collaborate... feature, to

demonstrate the power of this technology.  However, you should NOT enable the

TCP/IP CCI Server to use collaborate.

NOTE:  The typical Mosaic user will keep this feature disabled.

Port:

Defines the port where the Mosaic TCP/IP CCI Server will send and receive data.

Chat Alias:

Enter a name you will use when you are collaborating.  If no name is entered, Mosaic will use the user ID in your email address.  For example:

johndoe@some.company.com

The name that appears in a collaborative session will be:

johndoe


Preferences Anchors Sheet

Mosaic Preferences: Anchors

Click on the image for help.


Miscellaneous

The following options are active when the boxes are checked.

Change Cursor Over Anchor:

The cursor changes from the standard arrow to a hand with a pointing finger when the cursor is over a hyperlink or anchor.

.

Underlined:

All anchors or hyperlinks are underlined. (This feature is particularly useful if you are using a black and white monitor.)

Show Location in Status Bar:

The  URL of an anchor is displayed in the status bar when the cursor is over the anchor.

Visually Age Visited Anchors

Gradually changes the color of an anchor from the visited or cached color to the unvisited color as the anchor gets closer to the expiration period specified in the next feature.

Expire Visited Anchors:

Length of time before an anchor reverts to the unvisited anchor color.


Current Anchor Highlighting

Using a framed, buttoned, or hatched anchor, the left and right arrow keys are enable for

anchor navigation.  The right arrow will advances you to the next anchor in a document

and left arrow key returns you to the previous anchor in the document.

Framed:

Surrounds the current anchor with a solid frame.

Button:

Gives the current anchor a 3D button effect.

Hatched:

Surrounds the current anchor with a broken frame.

None:

Anchors are not modified by a frame, button, or hatched effect; anchor navigation with the left and right arrow keys is disabled.

Red: Green: Blue:

The current RGB color value of the anchor border.

Change...

Opens a dialog box where a new color for the anchor border can be selected from a color palette.


Unvisited Anchor Color

Red: Green: Blue:

Displays the RGB color value for anchors that you have not visited.

Change...

Opens a color palette where you can select a new color for Unvisited anchors.


Visited Anchor Color

Red: Green: Blue:

Displays the RGB color value for anchors that you have visited.

Change...

Opens a color palette where you can select a new color for Visited anchors.

Clear

Erases the global history list, mosaic.ghi..  This file contains a list of URLs that represents every document you’ve visited on the WWW before the defined expiration date.


Cached Anchor Color

Red: Green: Blue:

Displays the RGB color value for anchors that are cached on your local hard drive.

Change...

Opens a color palette where you can select a new color for the anchors of your Cached files.

On

Turns on the color scheme.  If On is not selected, the anchors will appears as Visited anchors.


OK

Saves and applies the changes to the current session and closes the Preferences window.


Cancel

Aborts changes and closes the Preferences box.


Apply

Saves and applies the changes to the current session and leaves the Preferences window open.


Help

Opens the Mosaic Help file.


Help Index
Index

Choose the topic you are interested in:

Introduction

Document View

Menus

Customizing

Advanced Features


Document View Index

Document View

Choose the topic you are interested in:

Introduction

Document View:

-Title Bar

-Menu Bar

-Toolbar

-Location Bar

-NCSA Mosaic Logo

-Document View Area

-Status Bar

Menus

Customizing

Advanced Features


Menu Index
MENUS

Choose the topic you are interested in:

Introduction

Document View

Menus

-File Menu

-Edit Menu

-History Manager Menu

-Source Manager Menu

-Hotlist Manager Menu

-Cache Manager Menu

-View Menu

-Navigate Menu

-Tools Menu

-Hotlists Menu

-Help Menu

Customizing

Advanced Features


Customizing Index
CUSTOMIZING

Customizing is done in the Preferences window.  You can open it by clicking on the View menu and clicking to Options/Preferences.

Choose the topic you are interested in:

Introduction

Document View

Menus

Customizing

-Anchors

-Audio

-Cache

-Directories

-Document

-Fonts

-History Manager

-Hotlist Manager

-News

-Printing

-Proxy

-Services

-Tables

-Window

-Viewers

Advanced Features


Advanced Features Menu
ADVANCED FEATURES

Choose the topic you are interested in:

Introduction

Document View

Menus

Customizing

Advanced Features

-Command-line Parameters

-Advanced Hotlist Manager

-Collaborative Session

-Kiosk Mode

-Autosurf

-Presentation Mode

-Right Mouse Menu Options

-News Groups

-Build Site Map

-Keyboard Commands

-Disabled Access Features


Command Line Options
Mosaic Command Line Options

The Mosaic executable accepts command line switches or parameters that can define its functionality.  Click on any of the following switches to learn more about their functions.

-i	-cciserverlimit N
-s	-collablimit N
-k	-collabdroplimit N
-pen	-hostcollab
-nosplash	-port
-presentation	-nodde
-notcpip

The above command line switches can be added to a Mosaic program icon by:

•	single click on the Mosaic icon

•	select Properties from the Program Manager’s File menu

•	place your cursor at the end of the Command line:

•	enter the switch option

•	Click OK when finished

Note:

1) 	Spaces exist between executable name, mosaic.exe , the switch and any switch parameters.

2) 	Multiple parameters can be passed on the command line.  For example:

Example Command Line:

c:\mosaic\mosaic.exe -i c:\mosaic\mosaic.ini -nosplash -presentation


Mosaic Initialization File(mosaic.ini) Command Line Option
-i

The -i switch allows you to invoke Mosaic using the initialization file defined in the path.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -i c:\mosaic\mosaic.ini

The name of the initialization file is arbitrary and if you have a computer with multiple users, you can create a unique Mosaic icon for each user.  Each user would need to have a unique Mosaic initialization file allowing them to create a custom environment.  For example, change the properties  fields to reflect similar information

Description:	Terry’s Mosaic

Command Line:  	c:\mosaic\mosaic.exe -i c:\mosaic\terry.ini

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-s

The -s switch tells Mosaic to start in Stand-Alone Mode.  Stand-alone mode allows a user to view local documents while not connected to the network.  If you try to access a networked file, Mosaic will display an error message reminding you that you are not logged in.

Example Command Line:

e.g., 	c:\mosaic\mosaic.exe -s

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-k	KIOSK Mode

The -k switch invokes Mosaic into kiosk mode.  Kiosk Mosaic removes most menu items and will not allow the user to exit from the program.

Example Command Line:

e.g., 	c:\mosaic\mosaic.exe -k

NOTE:  If you add the  -exit switch to the command line the user can exit the program.

e.g.,	 c:\mosaic\mosaic.exe -k -exit

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


Kiosk Mosaic

You can configure Mosaic to run in a kiosk mode.  In Kiosk mode, Mosaic is invoked with a limited set of features.  This is useful for organizations (e.g., libraries) that want to keep users within a specified set of files or want to protect their system from potentially destructive users.  By removing most menu options, Kiosk Mosaic users will be able to view anything but they won’t be able to select Save... from the File menu, change the current preferences or manipulate the hotlist.

You will need to create the desired environment before you invoke Mosaic in Kiosk mode.  This can be achieved using the Mosaic Preference sheets.  For example, you should determine the desired window size and the included hotlist items before you invoke Mosaic in Kiosk mode.

The available menus and menu items in Kiosk Mode are:

File	Open URL (Ctrl+o)

Edit	Find (Alt+F3)

Find Next (F3)

Navigate	Session History

Hotlists

The Hotlist menu(s) as defined by the system administrator.

Help	Online Resources

Configure Kiosk Mosaic


-pen

Enables middle mouse button control over Mosaic.  Depressing the middle mouse button and moving it in one of the following patterns produces the following result.

e.g., 	C:\mosaic\mosaic.exe -pen

Moving the Mouse	Produces

Left	BACK

Right	Forward

Up	Page Up

Down	Page Down

Backward C	Preferences

L	Home

Upside-down L	Hotlist Manager


-nosplash

Prevents the Mosaic splash screen from appearing.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -nosplash

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-presentation

Presentation Mode

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -presentation

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


Presentation Mode

Presentation Mode is ideal for giving presentations using HTML documents.  Mosaic displays full screen and the only information available to the audience is your presentation material.  While in presentation mode all menus, toolbars and status bars are removed from the screen. However, you can configure Mosaic to show the toolbar, the locator bar, and the status bar with the keyboard..

You can enter presentation mode by:

1) 	selecting Presentation Mode from the Options menu

2) 	entering Alt+P from the keyboard

3) 	invoking Mosaic in Presentation Mode

While you’re in presentation mode, the following keyboard functions are available:

Alt+P	Toggles presentation mode on and off

ESC 	Turns presentation mode off

Alt+T	Toggles the toolbar on and off

Alt+L 	Toggles the locator bar on and off

Alt+S	Toggles status bar on and off

NOTE:  The toolbar, locator bar, and status bar are off by default.  Toggling while in presentation mode does not affect the default settings.


-hostcollab

Invokes the Mosaic client with the collaborative server.  If you do not specify a port number of the host it defaults to port 2112.  If you want to specify a port number, must use the -port switch in conjunction with -hostcollab command line switch.

Example Command Line:

e.g., 	c:\mosaic\mosaic.exe -hostcollab

or

e.g.,	c:\mosaic\mosaic.exe -hostcollab -port 2001

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-port

Defines the port number where the collaborative server will send and receive data.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -port 2001

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-cciserverlimit N

Limits the number of connections the TCP/IP CCI server will accept. .  N is equivalent to the number of connections.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -cciserverlimit 5

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-collablimit N

Limits the number of clients during a collaborative session.  N is equivalent to the number of collaborators

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -collablimit 10

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-collabdroplimit N

Limits the size of the files that can be dragged and dropped on the collaborative session window. .  N is equivalent to the maximum file size accepted by the collaboration window.  The size of the file is measured in Bytes.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -collabdroplimit 1024

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-nodde

Disables the DDE communications between Mosaic and external applications.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -nodde

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


-notcpip

Disables the TCP/IP communications between Mosaic and external applications.

Example Command Line:

e.g.,	c:\mosaic\mosaic.exe -notcpip

NOTE:  Mosaic understands multiple command line switches.  However, you must separate each switch with a space.


NCSA Mosaic Copyright Statement

NCSA Mosaic Copyright Notice

NCSA Mosaic Software

National Center for Supercomputing Applications

University of Illinois at Urbana-Champaign

NCSA Mosaic software [both binary and source (if released)] (hereafter, Software) is copyrighted by The Board of Trustees of the University of Illinois (UI), and ownership remains with the UI.

The UI grants you (hereafter, Licensee) a license to use the Software for academic, research and internal business purposes only, without a fee. Licensee may distribute the binary and source code (if released) to third parties provided that the copyright notice and this statement appears on all copies and that no charge is associated with such copies.

Licensee may make derivative works. However, if Licensee distributes any derivative work based on or derived from the Software, then Licensee will

1. 	notify NCSA regarding its distribution of the derivative work, and

2. 	clearly notify users that such derivative work is a modified version and not the original NCSA Mosaic distributed by the UI.

Any Licensee wishing to make commercial use of the Software should contact the UI, c/o NCSA, to negotiate an appropriate license for such commercial use. Commercial use includes

1. 	integration of all or part of the source code into a product for sale or license by or on behalf of Licensee to third parties, or

2. 	distribution of the binary code or source code to third parties that need it to utilize a commercial product sold or licensed by or on behalf of Licensee.

UI MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. THE UI SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY THE USERS OF THIS SOFTWARE.

By using or copying this Software, Licensee agrees to abide by the copyright law and all other applicable laws of the U.S. including, but not limited to, export control laws, and the terms of this license. UI shall have the right to terminate this license immediately by written notice upon Licensee's breach of, or non-compliance with, any of its terms. Licensee may be held legally responsible for any copyright infringement that is caused or encouraged by Licensee's failure to abide by the terms of this license.


List Files of Type:

Displays a file type.  File types are determined by the extension associated with a

file name.  By default, Mosaic displays HTML files.  Click the arrow key to select

another file type from the list box.  The file types available are HTML(.htm),

Text(.txt) or all files(*.*).


File Name:

Displays the name(s) of the file(s) in the current directory.   All files are listed by

the file type.  Enter the name of a file or click on the one of the listed files and

select OK to open the file.


Directories:

Displays the path to the current folder or directory in a hierarchical format.  To

change folders, double click on the folder above the current folder to move up the

directory tree.  Click on the name of a folder to open it and display the contents of

that folder.


Cancel

Cancels the entries in the collaboration setup window and returns you to the main Mosaic window.


Open

Opens the file selected in the file name box.


Collaborate...

Click on the image for help.

Collaborate offers you more than a simple talk or chat session between Mosaic clients. Collaborate allows you to link your Mosaic session with other Mosaic users, send files, and exchange data with other collaborators.  Collaborate works on the client-server principle and each Mosaic client contains a collaborative client and server. The collaborative client allows you to connect to a collaborative server and communicate with other Mosaic users.  The collaborative server initiates a collaborative session and relays all data between the clients.

Joining a Collaborative Session:

1. 	Enter the name or IP number of the machine that is hosting the collaborative session.

2. 	Enter the port number of the collaborative session.  (Note: The port number is provided by the host of the collaborative session.)

3. 	Click  “Join a Session”.

Hosting a Collaborative Session:

1. 	Enter the name or IP number of your machine.

2. 	Select a port number.  (1 - 9999)

3. 	Click “Host a Session (but do not join)  or  Host a Session (and join) depending on your preference.

After you setup the collaborative environment, Mosaic opens a Collaborative Session Window.  This window is your interface to the collaborative session.

NOTE:  There are a number of ways to limit the collaborative features using command line options


Your IP Address:

The Internet Protocol (IP) number of your system.


Host Name:

Enter the name of the machine that will host the collaborative session.  For example, collab.ncsa.uiuc.edu.


TCP/IP Port:

Enter the port number where the server will send and receive messages. The port number is arbitrarily defined by the Mosaic user who initiates a collaborative session and must be less than 9,999.


Join a Session

Initiates a collaborative client.  Select this option and fill in the appropriate Host Name: and port number to join a session.


Host a Session (but do not join)

Initiates a collaborative server with out initiating a client.  This option is practical for users who would loan their machine as a host of a collaborative session yet they do not want to participate in the session.

NOTE: You can join a session after you’ve selected this option.  Simply select “Join a Session” and enter your machine’s name, the define port number and click Start to join the session.


Host a Session (and join)

Initiates a collaborative session and a client.  Select a port number between 1 - 9,999 and select “Start” to begin a collaborative session.


Start

Select Start to begin and/or join a collaborative session.


Stop Host

Terminates a collaborative server.


Cancel

Cancels the entries in the collaboration setup window and returns you to the main Mosaic window.


Collaborative Session Window

Click on the image for help.

The Collaborative Session Window contains three working areas:  the message display area, the collaborator list and the message edit area.  The window also contains a toolbar that gives you easy access to some of the menu functions.  The collaborate window is also sensitive to Window’s drag and drop feature.  You can drag and drop a file from the File Manager, Windows Explorer or the desktop to the Collaborative Session and it to the members of the current session.


Message Display Area

This area displays all messages being written during a collaborative session.  The name of the message sender will appear in front of the displayed message.

e.g.,	mosaic-w> Hello World


Collaborator List

A list of the current members in the collaborative session.  Double click on a name to identify the chat alias, user name, email address and IP number.  The names in the collaborator list is defined by the “Chat alias” field in the Services preference.  If a chat alias is not defined, Mosaic will use the user ID on your email address.


Message Edit Area

Type your message in this section of the window.  The Message Edit Area accepts paste commands(Ctrl+V) from the clipboard and supports word wrap so your message will automatically advance to the next line.  Submit your message to the collaborative session by clicking on the “Send” button or hit the Return/Enter key on the keyboard.


Collaborative Window

At present this area of the window is not being used for a specific purpose.  However, this area is sensitive to the collab session’s drag and drop feature.  You can send any local file to the other members of the collaborative session by dragging and dropping a file into the collaborative session window.


COLLABORATIVE SESSION     FILE MENU

Click on a menu item for help.


Save Session	Ctrl + S

Saves the current session to a file. By default the file is named collab.txt and it can

be found in the default download directory as defined in the Directories preference

sheet.  This function is also available from the toolbar by clicking the [image].button.


Clear Message Box	Ctrl + N

Clears the contents of the Message display area.  This function is also available

from the tool bar by clicking the [image] button.


Exit

Terminates the client and closes the collaborative session window.


Click on a menu item for help.


Send Links	Ctrl + L

This function links multiple Mosaic sessions by sending the URL of the current

page to the other members of the collaborative session.  A check appears next to

the menu item when this function is enabled.  The [image] button in the toolbar is

another way of switching the feature on and off.


Follow Links	Ctrl + F

The “Send Links” and “Follow Links” functions allow multiple Mosaic sessions

to act as one session.  Everyone sees the same data in their respective Mosaic

window.  An arrow appears next to the menu item when the function is active.

Follow links can also be switched on and off by clicking the [image]  button in the

toolbar.


Audio Notification	Ctrl + A

When active, the system will make an audio notification when a new message has

arrived in the message display area.  An arrow appears before the menu item when

the feature is active.  The audio notification feature can also be switched on/off by

clicking the [image] button in the toolbar.


Refresh User List	Ctrl + R

Queries the collaborative server for a current list of members.  This function is

available from the toolbar by clicking on the [image] button.


Always on Top

When checked, the collaborative session window is always on top of the other Windows application..


Save Settings on Exit

Saves all your user configurable settings when you exit a collaborative session.


Save Settings Now

Saves the current settings immediately.


Collaborative Session Toolbar

All functions and icons are defined in the menus.  Please refer to the menus items

for more information.


System Menu

Opens the standard Windows system menu.


Minimize/Maximize

The down arrow minimizes the Mosaic window and the up arrow maximizes the

window to fit the entire screen.


Preference Sheet Help button
Help

Opens the Mosaic Help file.


List Files of Type:

Displays a file type.  File types are determined by the extension associated with a

file name.  By default, Mosaic displays HTML files.  Click the arrow key to select

another file type from the list box.  The file types available are HTML(.htm),

Text(.txt) or all files(*.*).


OLE Control Downloading

Allows you to determine whether or not you want to load OCX’s.


Configure Toolbars

Allows you to determine which icons you want to display in your toolbars.


Link Tag/Site Map Config

Allows you to determine where your link tags will appear.


URL

(Uniform Resource Locator) - A URL is a method of addressing an object

following a standard syntax.  A URL contains following information:

1) 	the protocol being used to access an object

2) 	the name of the machine that houses object

3) 	the directory path to the object

4) 	the name of the object.

The standard form of a URL is:

protocol://machine.name/directory/path/filename.html

For example, the URL to the NCSA Mosaic for Microsoft Windows Home Page

is:

http://www.ncsa.uiuc.edu/SDG/Software/WinMosaic/HomePage.html

Note:  If a file’s name is not explicitly defined (ie. HomePage.html), the

information server typically returns the index of a directory.  On Web servers the

index file, index.html, can be linked to a specific file and many information

providers elect not to define the top level file.  With this in mind, the example

URL above is equivalent too:

http://www.ncsa.uiuc.edu/SDG/Software/index.html

AND

http://www.ncsa.uiuc.edu/SDG/Software/WinMosaic/


MIME  (Multipurpose Internet Mail Extensions)

A MIME type defines the content type of a file.  MIME information is sent with

the first data packet across the network.  MIME typing allows the receiver of a file

to know what type of file it is before receiving the file.  Mosaic uses MIME to

determine if it needs to invoke a helper application when it encounters a non-

native file type.

Mosaic is capable of handling the following files and MIME types:

HTML(text/html), ASCII(text/plain), GIF(image/gif), JPEG(image/jpeg),

BMP(image/bmp), XBM(image/xbm) and WAV(audio/wave) file types.  All

other file types are passed to helper applications.


Right Mouse Button Features

The right mouse button(RMB)displays a variety of menus depending on the type of server you are connected to and the type of information the mouse cursor is above.  For example, different menus are displayed when Mosaic accesses a WWW document, a Gopher document, an FTP site, or a news server.

Some of the right mouse menu functions are specific to the type of information you are viewing but some functions are common to all the menus.

Common Options

RMB menus common to most documents.

Inline Image Options

RMB menus dedicated to inline images.

FTP & News Server Options

RMB menus dedicated to Mosaic’s FTP and News server interface.

Toolbar Options

RMB menus for modifying Mosaic’s toolbar setup.

Manager View Options

RMB menus dedicated to the specific Mosaic Manager views.


Common Right Mouse Button Menu Items

If you right-click on unanchored text…

If you right-click on an anchor…

If you right-click on the background…


Copy

Copies the selected text to the clipboard.


Save to Disk

Saves the currently displayed file to your disk.


Save as Text

Saves the current file as an ASCII text file (.txt).  Save as Text omits from the file all inline images and any information contained in HTML tables.


Document Header Information

Prompts the server for information about the current document and displays it in a dialog box.  The information includes: URL; file size, date, and MIME type; the HTTPd server, and MIME version used by the server.


Change “font name” Font

Changes the characteristics of the current font.  For example, to change the size, color, or style of a level one heading font, <H1>, place your cursor over the text formatted as a level one heading and select Change Heading1 Font from the right mouse menu.  Mosaic opens the font style sheet where you can change the font attributes. Your modifications take place immediately and become the new formatting associated with that font style.


Create Internet Shortcut

Internet Shortcuts create local links to remote documents.  These shortcuts

represent specific documents on the network and can be managed in a program

group.  For example, you could check the latest weather satellite image by double

clicking on your Weather shortcut.  When a shortcut is double clicked, Mosaic is

invoked with a specific purpose and it accesses the network for the file defined in

the shortcut.  Shortcut files have the .url extension and their location is defined by

the user..


Spawn Mosaic from Current Page

Creates a new session of Mosaic using the current page as the first page loaded

into history.


Pixel Color

Brings up a dialog box displaying color data for the exact pixel on which you right-clicked.


Save Background Image

Saves the background image of the current page to your disk.


Load Anchor to Disk

Loads the file associated with the current anchor to your local disk.


Add Anchor to Hotlist

Saves the current anchor to a hotlist.  When selected, Mosaic prompts you for a title and saves the link with the title to your current hotlist folder.  The current hotlist folder is defined in Advanced Hotlist Manager.


Anchor Information

Queries the server for information about the hyperlink.  This information includes the address, the size of the file,  and if available, the MIME type of the object. The type of information server (e.g., WWW, FTP, Gopher) is also displayed if the data is available from the server.


Inline Image Right Mouse Menu Items
Inline Image

Right Mouse Button Menu Items


Reload

Prompts Mosaic to reload the inline image.


Image Information

Queries the server for information about the image and displays the information that is sent back from the server.  This information includes the address, the size and, if available, the MIME type of the image and the type of information server.


Inline Image

Right Mouse Button Save Options


Windows BMP Format

Saves the image after first converting it to a Windows Bitmap format.


Remote Site Format

Saves the image in its original format.


Kodak Photo CD

Mosaic is Kodak Photo CD (PCD) enabled. PCD technology offers you a third

choice in inline images.  This image technology lets you create Web sites that

allow readers to interact with images. Kodak PCD images can be zoomed,

panned, cropped, rotated, enlarged and reduced.  This technology also brings the

Kodak Color Management Tools to the Web, which ensures true color in your

inline images.  For more information about this technology see:

http://www.kodak.com/digitalImaging/cyberScene/experience.shtml


Zoom In

Zooms into the image one level.


Zoom Out

Zooms out of the image one level.


Zoom Crop

Zooms into the selected area.


Crop

Applies the focus to one area of the image; select crop and choose the area

with the left mouse button.


Enlarge

Enlarges the size of the current image.


Reduce

Reduces the size of the current image.


Undo

Returns the image to its previous state.


Rotate Clockwise

Rotates the image clockwise by 90 degrees.


Rotate Counter-clockwise

Rotates the image counter-clockwise by 90 degrees.


Pan Left/Right/Up/Down

Moves the image right, left, up, or down.


Full Image

Views the image in its largest format.


Reset to Original

Returns the image to its default size.


Print this Image

Prints the current image.


Display PhotoCD Icon

Marks each Photo CD with a small icon.


Kodak Photo CD

Options


Image URL

Defines the location of the current PCD image.


Image Base

Defines the size of the current PCD image and allows you to change the size of the image.  The image size is determined in pixels.


Rotation

Defines the current attitude of the image and allows you to change the rotation of the image.  Rotation is defined in degrees.


Compression

Define the level of compression is used for the current PCD image.  The higher the compression the lower the resolution of the image.


Color Space

Determines which image type is to be used for the PCD.


Get Image

Gets a PCD image.

Cancel

Closes the Options dialog box without saving any of the options.


Reset Image Size

Resets the current image to the default size.

Use Viewer

Sends the current image to an image viewer defined in the Viewer Preference sheet.  This viewer is associated with the image/gif or image/jpg MIME types.


FTP & Newsgroup

Right Mouse Button Menu Items

FTP Server Options:

Newsgroup Options:

Within the news article list…

Within the news article itself…


Upload File to a Server

Transfers a file from your machine to a remote machine.  Log on to an FTP server, select this function, and Mosaic prompts you with an FTP Upload dialog box where you to select a single file or multiple files for uploading to the FTP server.


Post to Newsgroup

Posts an article to the current newsgroup.


Catch up on Articles

Marks all articles in the current newsgroup as being read.


Next Subscribed Newsgroup

Moves to the next newsgroup in your list.


Previous Subscribed Newsgroup

Moves to the previous newsgroup in your list.


Reply to Author

Sends a private reply to the author of the article.


Follow Up to Article

Sends a public reply to a newsgroup article.


Previous Article

Moves back to the previous article.


Next Article

Moves forward to the next article.


Previous Topic

Moves back to the previous topic.


Next Topic

Moves forward to the next topic.


Back to Last Article

Returns to the list of topics and articles.


Manager Views

Right Mouse Button Menu Items

Hotlist Manager

RMB options within the Hotlist Manager.

History Manager

RMB options within the History Manager.

Source Manager

RMB options within the Source Manager.


Hotlist Manager Right Mouse Button Menu Items
Hotlist Manager

RMB Menu Items


Properties

Brings up a dialog box displaying the title, URL, and date for the selected item in the hotlist.


History Manager Right Mouse Button Menu Items
History Manager

RMB Menu Items


Delete

Deletes the selected URL from the History Manager tree.


Properties

Brings up a dialog box displaying the title, URL, and date for the selected item in your session history.


Source Manager Right Mouse Button Menu Items
Source Manager

RMB Menu Items


Undo

Undoes your previous action, returning the file to its previous state.


Cut

Removes (cuts) the selected text from the source and saves it in memory.


Paste

Pastes the text in memory to the specified area.


Delete

Deletes the selected text.


Select All

Selects the entire document (all text will be highlighted).


Toolbar

Right Mouse Button Menu Items


Keyboard Commands

This is a list of keyboard commands that can be used in Mosaic:

Ctrl + O	Open Document

Ctrl + L	Open Local File

Ctrl + S	Save As

Ctrl + P	Print

Alt + F3	Find

F3	Find Next

Ctrl + C	Copy

Ctrl + V(or Shift + Ins)	Paste

Ctrl + T	Mosaic Toolbar

Ctrl + W	Web Toolbar

Alt + N	Mosaic Manager

Alt + L	Location Bar

Alt + U	Hotlink Bar

Alt + S	Status Bar

Alt + P	Presentation Mode

F12	Refresh

Alt + Enter	Preferences

Alt + R	History Manager

Alt + O	OLE Control Downloading

Alt + G	Link Tag/Site Map Config

B	Back

F	Forward

R	Reload

H	Home

S	Stop Transfer

A	Add Current to Hotlist

PageUp	Scrolls Up One Page

PageDown	Scrolls down one page

Home	Scrolls to the top of the document

End	Scrolls to the bottom of the

document.

+	Increases the font size.

      -	Decreases the font size.

Ctrl + H	Adds http:// to the location bar.

Ctrl + F	Adds ftp:// to the location bar.

Ctrl + G	Adds gopher:// to the location bar.

Ctrl + N	Adds news: to the  location bar.

Ctrl + M	Adds mailto: to the location bar.


Introduction

Choose the topic you are interested in:

Introduction

NCSA

Software Development Group

Use of the Mouse and Mouse Button

Modem Optimization

Optimizing for Windows 3.1

Document View

Menus

Customizing

Advanced Features


Software Development Group

NCSA Mosaic is a product of the NCSA Software Development Group(SDG).

SDG develops software to assist in scientific discovery, including software for data analysis, data visualization, and communication.  SDG develops tools for the major platforms:  Macintoshes, PCs, UNIX workstations, and high-end supercomputers.

Most SDG tools are available on the NCSA anonymous FTP server:

(ftp.ncsa.uiuc.edu)


NCSA

Established in 1985 with a National Science Foundation grant, the National Center for Supercomputing Applications (NCSA) opened to the national research community in January 1986.  NCSA is a high-performances computing and communications facility designed to serve U.S. computational science and engineering communities.  Locates on the campus of the University of Illinois at Urbana-Champaign (UIUC),  NCSA is funded by the National Science Foundation, the Advanced Research Projects Agency, other federal agencies, the State of Illinois, the University of Illinois, and industrial partners.


Use of the Mouse and Mouse Buttons

The mouse is the main navigational tool used within the NCSA Mosaic window.  Unless otherwise specified, NCSA Mosaic for Microsoft Windows mouse actions require pressing the left button(see Keyboard Shortcuts)

1. 	Holding the SHIFT key and pressing the left mouse button while the cursor is pointing to a byperlink cause the file associated with that hyperlink to be saved to local disk instead of being displayed in the document view area.  The file transfer is performed in binary mode.

2. 	When Display Inline Images on the Options menu is turned off, and icon is displayed to hold the place of each inlined image.  Clicking on one of these place-holding icons with the right mouse button causes the corresponding inlined image to be displayed.  If the icon is part of a hyperlink, clicking the left button causes NCSA Mosaic to follow the hyperlink  Clicking the right button causes the image to be loaded and displayed without following the hyperlink.

See also: Right Mouse Button Menus


Disabled Access Features

The options below are included in NCSA Mosaic to help improve internet access for the disabled.  Some options are specifically designed features for disabled access; others are standard options.  Click on the item for a more detailed description.

Changing font size and color

Proportionally increase the entire font set with a single key stroke

Change the color of the background

Navigate the anchors using the left and right arrow keys

Associate 25 common Mosaic commands to audio files

Recognize pen motions

Easy access to common functions using the right mouse button menu


Changing Font Properties

The properties of a font can be changed in a number of ways.  The font section of the

View—Options—Preferences menu will allow you to enter a font group, select various fonts, and change items such as size, magnification, and color.

Another method is to right click over a font group and change that specific font’s properties from the right mouse button menu.


Single Keystroke Magnification

The plus and minus keys (+,-) on your keyboard are directly linked to a magnification feature that proportionally adjusts the size of all fonts to a maximum of five times their original size.  Press the plus (+) key to increase the size of the current font settings.  Press the minus (-) key to decrease the current font settings.


Changing the Background Color

The background color may be changed from the Document section in the View—Options—Preferences menu.  You simply click on the Set Color button in the area labeled Background Color, and a palette window will appear.  Select your desired color and click OK.  Your new color is saved as your preference.


Current Anchor Highlighting

NCSA Mosaic has three choices for highlighting anchors: framed, button or hatched.  Selecting one of these methods from the Anchors section of the Views—Options—Preferences menu will allow navigation of anchors using the left and right arrow keys.

The color of the highlighting can also be changed.  To do this, simply click the Change button and set new Red, Green, and Blue values.


Mosaic Sound Schemes

In the Audio section of the Views—Options—Preferences menu, you can associate .wav audio files with up to 25 common Mosaic commands.  There is also an interface from which pre-existing sound schemes can be loaded, or newly created ones can be saved.  For more help, see the Preferences section.


Pen Movement

Mosaic recognizes pen movements.  When the middle mouse button is clicked, Mosaic is sensitive to mouse movements as input commands:

page up	move mouse up

page down	move mouse down

move forward in history	move mouse right

move back in history	move mouse left

go to the defined homepage	move mouse in L shape

open the Preferences menu	move the mouse in a backwards C shape

To activate this feature, include the command line switch -pen to your Mosaic icon properties.  The next time you open Mosaic it will be movement sensitive when you hold down the middle mouse button.


Optimizing Windows 3.1x

Optimizing your system’s virtual memory improves Mosaic’s performance as well as the overall performance of Windows and your other applications.  Windows 3.1x users may improve the way their systems use virtual memory by reviewing the information below and implementing some of the suggestions.

Permanent Virtual Memory

If you use permanent virtual memory, Windows allocates a contiguous block of hard disk space for writing data.  Since the data is being written in a single space, performance improves.  The limitation of permanent virtual memory is the amount of space the actual disk has free.  If you have a full or very fragmented drive, there may be insufficient space to take advantage of permanent memory.  If you can’t get a reasonable size space for virtual memory, try removing old unused applications and defrag your hard drive.

Temporary Virtual Memory

If you use temporary virtual memory, Windows allocates blocks of space as needed anywhere on your drive.  Data is then written to any available block.  Disk thrashing is associated with the use of this type because Windows is reading and writing data in fragmented parts all over your disk.  The advantage is that space is not allocated until it is needed.  The disadvantage is disk thrashing and a degraded performance when running large, memory intensive programs.

Changing Virtual Memory Settings

Change your virtual memory settings from the Control Panel by selecting the 386Enhanced program.  Within this program is a Virtual Memory button that displays the current setting for your system.  If you want to change a setting, select the Change button.  Windows displays total disk space and the amount it can allocate for permanent or temporary swap files.

Other Suggestions


Other Suggestions

Defrag your hard drive with the Defrag program (a DOS application).  By defragging your hard drive, you recover wasted disk space.  Windows can then allocate a larger block of disk to use for permanent virtual memory.  For information about the defrag command, enter help defrag at a DOS prompt.

Windows 3.1 users should check their virtual memory settings.  Open the Enhanced386 program in the Control Panel and select the Virtual Memory button.  Windows displays the current information about your systems settings.  Ideally you should configure your system to use a permanent swap file as shown in the Recommended Size: field.  Also check the Use 32-bit Disk Access and Use 32-bit File Access boxes if you have these options available in your Windows 3.1x environment.  Providing this much memory to Windows improves the performance of Mosaic as well as the performance of Windows when you have multiple applications open at once.

Limit the number of documents you store in Mosaic’s memory cache.  If you store too many documents in memory and run multiple applications during your Mosaic session, Windows may run out of memory and crash.  Mosaic’s default setting is to store 4 documents.  If you have at least 4 megabytes of RAM, use the default setting.


Modem Optimization

Using a modem to connect to the internet is fairly common, and the speed of your modem is the most important factor.  NCSA recommends that you use a minimum of a 14.4 modem, which is fast but still has performance limitations.  A 14.4 modem can only transfer 14,400 bits per second, or roughly 1,800 bytes which is 1.8K/sec.

To improve your modems performance, optimize it according to the modem manufacturer’s instructions and use the modem’s built in data compression.

Because most hypertext documents contain inline images that tend to be larger files, ou must choose between images and speed:

displaying an HTML file without images achieves maximum speed but sacrifices

the initial visual impact of pages, although you can retrieve images later at your

own discretion

displaying HTML files with inline images impacts performance, but improves

the initial visual impact of the pages

Certain sections in Mosaic’s View—Options—Preferences menu can be useful in improving performance as well.

The display area of the Document section allows you to customize how the HTML page is displayed relative to it being downloaded.

The Cache section will also present you with ways to make browsing faster.


Status Bar

The status bar consists of the Message Display Area, Visual Status Indicators, and Progress Indicators.

Message Display Area

Reports messages concerning connectivity to the information server and the status

of a file download while Mosaic is trying to retrieve.  While Mosaic is idle, the

text status area displays the document address of a link when the mouse pointer

is placed over a hyperlink

Visual Status Indicators

Indicates an application using OLE is connected to your Mosaic session.

Indicates that Mosaic has not made a connection to an information server.

Indicates Mosaic has made a connection to an information server.

Indicates an HTML document is being pulled from the disk cache and not

from the associated information server.

 	Waiting to read data from a server.

Reading data from a server.

Indicates in-line images need to be downloaded for the current document.

To the right of the image icon appears the number of in-line images associated

with the current document.  This number decreases as the in-line image files are

received and paginated.

 Progress Indicator

The Mosaic progress indicator is a visual aid to help you determine the amount of

bytes received for a file.  This area optionally displays the Day/Date/Time when

Mosaic is idle.  The time settings are in the Window Preference Sheet.