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Appendix C. Typical Scenarios for Work Station
Configurations
Some typical scenarios for work stations with various amounts of memory
available to them are given below. For these scenarios, it has been
assumed that a realistic minimum size for a Personal Computer application
is 128 kilobytes, including IBM PC DOS 2.1. The figures given are for a
DFT SNA attachment.
The graphics memory needed for the picture segments and any special
symbol sets of an interactive graphics application is directly related to the
complexity of the picture. As a guide, not less that 30 kilobytes should be
available for typical business graphics, and 60 kilobytes for engineering and
scientific work. Editing applications that break down pictures into small
parts will need more memory than those applications that deal in larger
entities, or have little interaction.
Note: For picture viewing, host-computer and local sessions can draw in
unretained mode, which does not require picture memory.
Work Stations with a 5279 Color Display and the
Graphics Control Program
384-Kilobyte Memory
•
Either a single host computer interactive graphics session:
35-Kilobyte picture store
Local spool for print
IEEE-488 attachment support.
Appendix C. Typical Scenarios for Work Station Configurations
103
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