Rendering context manager for display adapters supporting multip

Details Rendering context manager for display adapters supporting multip Rendering context manager for display adapters supporting multip

1993-02-25

1994-11-22

MacDonald, Allen R.

Boots, shoes, and leggings

364DIG1, 3642372, 3642814, 3642813, 3642817, 3642860, 395162, G06F 900

Patent

active

053676807

ABSTRACT:
A multitasking data processing system for executing a plurality of processes is provided that includes a single peripheral device addressable through two ports. A peripheral device manager is provided that includes the capability of (1) allowing access to only a single process for accessing the peripheral device and (2) the capability to provide access to a first process while simultaneously and concurrently providing access to a second process to a second port.

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