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1994-07-01
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Connecting to the World Wide Web with OS/2
------------------------------------------
Timothy F. Sipples
IBM Personal Software Marketing
Chicago, Illinois
Internet: tsipple@vnet.ibm.com
Revised July 1, 1994
The World Wide Web (WWW or 3W for short) is a system of distributed servers
spread across the Internet. These servers are interconnected using
hypertext documents and scripts written in a language called HTML.
WWW is an exciting technology, because it enables Internet users worldwide
to obtain information in a user-friendly way. Graphics, text, sound, and
even motion video can be sent across the network and viewed on your
desktop or notebook computer.
To access the World Wide Web you need a WWW browser. Popular browsers
include Mosaic, Lynx, and Cello. Unfortunately none of these browsers are
available in a native OS/2 version. Right now, at least two companies are
working furiously to create a native WWW browser for OS/2. (OS/2 has
tremendous advantages for WWW browsing. With current browsers, for
example, the user must wait until an entire audio or graphics file is
downloaded before playing or viewing it. Since OS/2 supports threads, it
would be possible to design a browser which started playing an audio file
immediately, downloading the remainder of the audio file in the
background.)
In the meantime, as an OS/2 user you can access the World Wide Web using a
browser designed for Windows. Cello is probably your best choice, and the
instructions below explain how to get up and running with that software.
This document assumes that you are already connected to the Internet using
IBM TCP/IP Version 2.0 for OS/2. While WWW browsing can be done over a
dial-up telephone connection (using SLIP), a high speed direct connection
to the Internet (over Token Ring or ethernet) is recommended for sound,
graphics, and especially motion video browsing.
You should also obtain and install the DOS/Windows Access Kit for IBM
TCP/IP Version 2.0 for OS/2. Cello requires this add-on kit since it is
"Winsock" compatible. (If you use another TCP/IP product for OS/2, it may
support the Winsock interface as well.)
Make sure you apply all the most recent Corrective Service Diskettes for
both the Base TCP/IP Kit and the DOS/Windows Access Kit. Make sure that
the VDOSTCP.VDD file in the DOS/Windows Access Kit Corrective Service is
dated February 9, 1994, or later. Make sure the WINSOCK.DLL file in the
same Corrective Service is dated January 28, 1994, or later. If that is
not the case, you may have to obtain APAR PN52335. This APAR is available
via anonymous ftp from ftp-os2.cdrom.com as filename pn52335.zip.
The following software is recommended but not required:
Graphics/Image viewer. Examples include PMJPEG, PMView, Image Archiver,
JoeView, and Galleria. These viewers will handle both GIF (Graphics
Interchange Format) and JPG (JPEG) formats used commonly throughout the
World Wide Web.
Sound file conversion utility. Examples include Sox for OS/2 and
PMsndX (Presentation Manager Sound Exchange). Such utilities can convert
audio files (such as those in Sun .au format) into OS/2 (MMPM/2) playable
.WAV format. (If you wish to listen to audio files, you should install
and configure MMPM/2 for your sound card.)
MPEG player. Most software motion video files available through the
World Wide Web are in MPEG format. An OS/2 MPEG player, such as PMMPEG,
is useful here.
All of the software mentioned above is available via anonymous ftp from
ftp-os2.cdrom.com. Much of it is shareware. If you use shareware, please
register it and support the authors who wrote it.
To install Cello for use under OS/2 (assuming you have properly installed
and configured IBM TCP/IP for OS/2 with the DOS/Windows Access Kit, all
necessary Corrective Service, Win-OS/2, and, optionally, MMPM/2), do the
following:
(1) Create a directory (such as \Apps\Cello).
(2) Unzip all the Cello files into this directory and CD to it.
(3) Use the COPY command to replace the file DEFAULT.HTM with either
EXTERNAL.HTM or INTERNAL.HTM. For example, if you are using Cello while
connected to the internal IBM network, issue the following command:
COPY INTERNAL.HTM DEFAULT.HTM
Use EXTERNAL.HTM if you are located outside the IBM internal network.
The DEFAULT.HTM file is the original homepage distributed with Cello.
(3) COPY the appropriate style file to CELLO.STY. So, for example,
if you are using a display with a resolution of 1024x768 (or greater),
COPY 1024-768.STY CELLO.STY
(4) Modify the file CELLOOS2.INI using a text editor (such as the OS/2
System Editor). At a minimum, you should modify the file as follows:
EMail=yourname@vnet.ibm.com
Replace yourname@vnet.ibm.com with your e-mail address.
MailRelay=your-relay@vnet.ibm.com
Replace your-relay@vnet.ibm.com with the mail relay you use.
NNTPServer=your-server@vnet.ibm.com
If you have a network news (NNTP) server, add the name of the
server here.
Editor=epm
If you wish to use another editor (besides the OS/2 Enhanced Editor),
modify this line.
DLDir=c:\data\cello
Replace c:\data\cello with the path to the directory you use to hold
downloaded files. Create this directory if it does not already exist.
In the [Extensions] section, you should modify the lines for each file type
you expect to encounter when WWW browsing. Some reasonably sensible
defaults for OS/2 are provided.
(5) When you have finished editing CELLOOS2.INI, COPY CELLOOS2.INI to
CELLO.INI.
(6) If you have referenced PMView.Cmd and/or Sox.Cmd in the [Extensions]
section of CELLO.INI, edit those batch files to correct any path names or
viewer/utility names, if needed. You can greatly enhance the operation of
Cello by using "smart" batch files. (The examples provided are
utilitarian.)
(7) Modify CELLO.SIG so that your unique signature is included.
(8) Create a program object for Cello. Drag a program object from your
Templates folder to the desktop or another folder. Make sure the working
directory is pointed to the directory where Cello is located.
When you are done making these changes, Cello should be ready to run.
Cello is not an IBM product. These configuration files have been added to
the original Cello distribution merely for the convenience of OS/2 users.
If you need assistance with Cello, please refer to the sources listed in
either INTERNAL.HTM or EXTERNAL.HTM, as appropriate. If you need help with
Cello under OS/2, specifically, and you do not access the World Wide Web
through the IBM internal network, you should subscribe to the newsgroup
comp.os.os2.networking.tcp-ip.
In the near future, when a native OS/2 WWW browser is available (hopefully
a multithreaded browser), Cello will no longer be necessary. Please keep
an eye on comp.os.os2.networking.tcp-ip (or, for IBMers, the WWWIBM FORUM
on the IBMPC conference disk) for OS/2 WWW news.
Enjoy Cello!
Timothy F. Sipples