<i>Safeguard Data-Processing System</i>: Support Software and Support Computers: An Overview

Conners, R. R.

doi:10.1002/j.1538-7305.1975.tb03301.x

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1975

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“…A simulator called STACS (SAFEGUARD Tactical Simulator) provided the primary testing vehicle. 1 Various special-purpose test drivers and hardware simulators interfaced with STACS and enhanced its value. By eliminating the real-time and multiprocessor factors, STACS reduced the testing effort to a more common situation: program developers systematically testing their programs in a batch-oriented environment.…”

Section: Environmentmentioning

confidence: 99%

Safeguard Data-Processing System: Debugging a Real-Time Multiprocessor System

Phillips¹

1975

Bell System Technical Journal

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The debugging of SAFEGUARD software was performed in phases, each with a unique environment, problems, and debugging tools. The unique aspects of each phase are described here with special emphasis on the debugging tools used. Although the multiprocessor configuration introduced new kinds of software "bugs" and complicated the debugging problem, the real-time character of the system had a greater overall impact.

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Section: Environmentmentioning

confidence: 99%

Safeguard Data-Processing System: Debugging a Real-Time Multiprocessor System

Phillips¹

1975

Bell System Technical Journal

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Safeguard Data-Processing System: Central Logic and Control Operating System

Haggerty¹

1975

Bell System Technical Journal

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The Central Logic and Control (CLC) is the digital computer that controls Safeguard. This paper describes the novel features of the CLC operating system, presents its design rationale, and points out its limitations. Emphasis is on the characteristics that make the operating system suitable for applications other than Safeguard. These include its ability to control as many as ten processors, its ability to initiate the execution of a program within milliseconds of an event, and its ability to detect and isolate faulty hardware racks without manual intervention.

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Safeguard Data-Processing System: Support Software and Support Computers: An Overview

Abstract: This paper yives a critical overview of the development of a selected set of support software programs. These programs comprise part of the support environment required to make the SAFEGUARD system application software and hardware operational.

Cited by 2 publications

References 10 publications

Safeguard Data-Processing System: Debugging a Real-Time Multiprocessor System

Safeguard Data-Processing System: Debugging a Real-Time Multiprocessor System

Safeguard Data-Processing System: Central Logic and Control Operating System

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