2: System Description
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Screen modes
The screen mode (the format in which the information is presented
on the screen) is defined as follows:
• The resolution of the display is the number of columns and rows
of characters (text) or pixels (graphics).
• The number of available colours or shades of grey.
Screen modes can be shown as follows:
640 x 480 pixels x 256 colours
which represents a graphics mode with 640 columns and 480 rows.
256 colours can be displayed at any one time.
Some programs automatically select the screen mode which is
most suitable for your system and the program. Other programs
must be configured to select different modes.
You can also fit cards to give extra, higher graphics resolutions. In
this case you may need to remove the existing SVGA adapter.
There is additional help on setting up resolutions and refresh rates
to match your monitor in the RM PC Help.
Connecting to a Printer
Printers must be carefully selected to produce the output you want.
They must also be set up correctly. This can take some time and
thought, depending on your printer and which software you want to
use.
Compatibility
The printer you choose must be compatible with the IBM® PC-AT
range of computers.
Make sure that your application programs work with the printer you
want to use. You may need special printer drivers.
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