Data processing system having plurality of processors and channe

Details Data processing system having plurality of processors and channe Data processing system having plurality of processors and channe

1989-02-17

1990-10-30

Williams, Jr., Archie E.

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364228, 3642281, 3642282, 3642283, 3642301, 3642286, 3642302, 3642316, 3642327, 3642419, 3642817, G06F 922, G06F 944, G06F 946, G06F 1332

Patent

active

049673424

ABSTRACT:
A host computer functions as one or more variant systems. The host computer stores one or more system control programs, SCP's, where each SCP is provided for production operation of the host computer. The host computer includes common control means for all of the SCP's for controlling the host computer. The host computer also includes extended control means responsive to the one or more SCP's to make the host computer appear as one or more variant systems. The extended control means in the host computer ensures efficient operation of the host computer during production runs of each one or more of the SCP's.

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R. A. MacKinnon, "The Changing Virtual Machine Environment: Interfaces to Real Hardware, Virtual Hardware, and Other Virtual Machines", IBM Systems Journal, vol. 18, No. 1, pp. 18-46, IBM, New York.
European Search Report, European Patent Office, The Hague, Netherlands, date of search 05/23/89.

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