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Patent Searching and Data


Title:
MULTIPLEX COMPUTER SYSTEM
Document Type and Number:
Japanese Patent JPS63178365
Kind Code:
A
Abstract:
PURPOSE:To exclusively use an optional file at an optional timing without arranging an exclusive processor for executing the exclusive use of a common file by forming information indicating the validity/invalidity of the exclusive use of a file to be used for respective systems in common in a common memory to be accessed by respective systems constituting a multiplex system. CONSTITUTION:The common memory to be accessed by respective systems constituting the multiplex system to form information indicating the validity/ invalidity of exclusive use is formed to allow respective systems to exclusively read/write data at an optional timing. For instance, a 1st computer 1 and 2nd and 3rd computers 2, 3 constituting the multiplex system have the common file 5 and the common memory 8 to be accessed by respective systems forms the information indicating the validity/invalidity of exclusive use of the common file 5. Consequently, an exclusive processor can be omitted and respective systems can execute the exclusive use of an optional file at an optional timing.

Inventors:
ABE TSUTOMU
Application Number:
JP1047287A
Publication Date:
July 22, 1988
Filing Date:
January 20, 1987
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G06F15/16; G06F9/46; G06F9/52; G06F15/177; (IPC1-7): G06F15/16