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Development of a prototype multi-processing interactive software invocation systemThe Interactive Software Invocation System (NASA-ISIS) was first transported to the M68000 microcomputer, and then rewritten in the programming language Path Pascal. Path Pascal is a significantly enhanced derivative of Pascal, allowing concurrent algorithms to be expressed using the simple and elegant concept of Path Expressions. The primary results of this contract was to verify the viability of Path Pascal as a system's development language. The NASA-ISIS implementation using Path Pascal is a prototype of a large, interactive system in Path Pascal. As such, it is an excellent demonstration of the feasibility of using Path Pascal to write even more extensive systems. It is hoped that future efforts will build upon this research and, ultimately, that a full Path Pascal/ISIS Operating System (PPIOS) might be developed.
Document ID
19830027409
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Berman, W. J.
(Advanced Programming Techniques, Inc. Charlottesville, VA, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1983
Subject Category
Computer Programming And Software
Report/Patent Number
N8301
NAS 1.26:172210
NASA-CR-172210
Accession Number
83N35680
Funding Number(s)
CONTRACT_GRANT: NAS1-16985
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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