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- ================================
- Ch 1 − Introduction to Powerbase
- ================================
-
- 1.1 Description and installation
- ------------------------------------
- Powerbase is a flat-file database management system for use with Acorn
- 32-bit RISC computers. Versions from 6.xx onward are only usable with RISC
- OS 3.1 or later. If you are using RISC OS 2 you will require a different
- version of Powerbase which has a version number of the type 5.xx. Many of
- the features described in this manual are not present in that version of
- Powerbase but appropriate documentation in the form of text-files can be
- provided. This manual was fully revised in December 2000 to comply with v.
- 8.00 of Powerbase and users (other than RISC OS 2 users) of earlier versions
- are strongly advised to upgrade to this version, which incorporates many new
- features and is fully compatible with StrongArm and RISC OS 4.02. The
- software, documentation and sample databases may be downloaded from our
- website at www.pendle.ukgateway.net/
-
- 1.1.1 Hardware requirements
-
- It is quite feasible to use Powerbase on a 1Mb machine with a single floppy
- disc drive and, if your database runs to only a few hundred short records
- (e.g. an address-book), you might find such a system quite adequate for your
- needs. You will, however, find report creation rather slow when working
- from a floppy disc and a hard disc is strongly recommended, even for a small
- database; for large databases it is essential. If you have to work from
- floppies try to allocate enough memory to the RAM disc to copy the whole
- database onto it before you start work. This will speed up searches and
- reports enormously.
-
- 1.1.2 Installation
-
- Most users will receive Powerbase in the form of an ArcFS archive. You are
- advised not to run the program directly from the archive (although that is
- possible) but to de-archive it as follows. Run the supplied read-only
- version of ArcFS and double-click on the Powerbase archive. The archive will
- open to reveal the !Powerbase application which should be dragged to a
- suitable directory window. It is suggested that you also, by the same
- method, de-archive the sample databases e.g. !Elements, !Boxes, !Friends
- from the Examples archive if you intend to experiment with them or work
- through either of the tutorials. The tutorials are provided in a separate
- booklet. If databases are completely new to you we recommend you to work
- thought the Quick Tutorial which is based on the simple address-book
- database !Friends. If you are somewhat more experienced but are using
- Powerbase for the first time you will probably find Tutorial, using the
- !Elements database, more appropriate. Archives, unpacking
-
- 1.1.3 Disclaimer
-
- No warranty, express or implied, is made about the suitability of Powerbase
- for any purpose. We cannot be held responsible for any loss or damage due
- to the use of this software. All enquiries, requests for upgrades etc,
- should be directed to:
-
- Powerbase support
- 112, Keighley Road
- Colne
- Lancashire
- BB8 0PH
-
- Tel: (01282) 866835
- email: quercus@ukgateway.net
- website: www.pendle.ukgateway.net/
-
- When requesting an upgrade please enclose four first-class stamps.
-
- 1.2 Starting and ending a work session
- ------------------------------------------
- 1.2.1 Loading Powerbase
-
- Double-click on the Powerbase icon in a directory window and the program
- will load and place its icon on the iconbar. The words “No data” will
- appear under the icon indicating that no database is open yet.
-
- - 5 -
-
- 1.2.2 Opening a database
-
- A database may be opened for use by either of the following methods:
-
- • Dragging the database icon onto the Powerbase icon on the iconbar.
-
- • Double-clicking on the database icon. This is the more usual method
- and may be used even if Powerbase is not already loaded, as long as
- it has been “seen” by the filer.
-
- Whether you get immediate access to the database depends on whether or not
- it is password protected. If no passwords have been defined (as is the case
- with all the sample databases on the distribution disc) the main record
- window will open and the name of the database will appear under the
- Powerbase icon.
-
- A password-protected database will display the Access window in the middle
- of the screen requesting you to enter a password and perhaps even a personal
- user I.D. as well. The window has an Open button which should be clicked
- with SELECT when you have entered the required information. There is also a
- Cancel button which removes the window from the screen without further
- action. Passwords and I.D.s are case-sensitive and, if incorrectly entered,
- result in either a “Password not known” or “Access denied” message. After
- three successive incorrect entries Powerbase will close down and remove
- itself from the iconbar.
-
- 1.2.3 Closing a database
-
- There are three ways of closing a database:
-
- • Open another database, either by double-clicking or dragging to the
- Powerbase icon.
-
- • Choose Quit from Powerbase's iconbar menu. This also quits Powerbase
- itself.
-
- • Choose Close database from the iconbar menu. This still leaves the
- Powerbase application running. The wording underneath reverts to
- “No data”.
-
- If you have made any change to the database while it was open the disc will
- be automatically updated so that your changes are not lost, regardless of
- which of the above three methods of closure is used.
-
- 1.2.4 Quitting Powerbase
-
- Choose Quit from the iconbar menu. You need not specifically close your
- database first; any changes made to it will be saved before Powerbase quits.
-
- 1.3 Obtaining help
- ----------------------
- 1.3.1 Using the Acorn Help application
-
- When you are first becoming acquainted with Powerbase you may find it useful
- to load Acorn’s Help application (from Apps on the iconbar). Resize the Help
- window, if you wish, and move it to some convenient place on the screen.
- Moving the mouse pointer over the various windows, icons and many of the
- menus displayed by Powerbase will then give a brief description of the
- purpose of each.
-
- 1.3.2 Using the Helpreader text
-
- Further help is available from the Help option which appears on both the
- main menu and the iconbar menu. Choosing this option displays a text file
- which you can “navigate” by means of small orange buttons included in the
- text. Clicking with SELECT on such a button takes you directly to the part
- of the text referred to. Double-clicking with ADJUST takes you back to where
- you were when you last clicked on a button. Clicking MENU over the text
- window displays a menu giving an alternative means of access to specific
- parts of the text. The text has deliberately been kept fairly short and is
- in no way a substitute for this manual; it is intended to provide basic
- information only.
-
- - 6 -