G - Physics – 09 – G
Patent
G - Physics
09
G
354/236.2
G09G 1/00 (2006.01) G09G 5/14 (2006.01)
Patent
CA 1268556
Abstract An appartus for displaying the display outputs of a plurality of simultaneously active computer processes in corresponding windows on a single screen includes a microcomputer, a display screen and display system software. The software represents a plurality of virtual terminals, one corresponding to each active process, for emulating the operation of real terminals communicating with the processes. Each virtual terminal maintains a display list comprising a set of instructions defining a display on a screen according to the output from the corresponding process. The software also includes a screen process for maintaining a subrectangle list comprising a set of instructions for allo- cating window portions of the screen to the dis- plays defined by the separate display lists. A display list processor is provided for creating the windows on the screen according to the display and subrectangle lists.
518750
Kirby Eades Gale Baker
Tektronix Inc.
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