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Browse Prior Art Database

Multi-Tasking Operating System

IP.com Disclosure Number: IPCOM000034649D
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Graham, CS Gregg, LE Sheppard, FP [+details]

Abstract

In a machine utilizing an Intel 80286 processor supporting the IBM System/36 Control Store Processor (CSP), the 80286 provides I/O resource management and basic support functions for the CSP. To coordinate these tasks and to allow them to run in parallel, an operating system provides multi-tasking primitives. This Multi-tasking Operating System uses a heuristic approach to reduce the operating system overhead. This operating system was derived from a previous system, the Personal Computer Attachment Program which was contained in the IBM 5364 computer system available to the public. This Multi-tasking Operating System is an improvement on the previous system and is therefore referred to hereinafter as "PCAP-I".