Communications: electrical – Digital comparator systems
Patent
1975-06-30
1977-01-04
Shaw, Gareth D.
Communications: electrical
Digital comparator systems
G06F 710
Patent
active
040017907
ABSTRACT:
A data processing system including a plurality of control units, a first and second one of which have identical addresses. Both the first and second control units have like designated positions to which peripheral devices may be coupled. In addition the control units are coupled to transfer information between each other over a common electrical bus. The devices coupled to first and second control units are coupled to different designated positions in each of the first and second control units. Thus receipt of the identical unit address which corresponds to the first and second control unit and a subaddress of one of the like designated positions included in such first and second control units, addresses only one of the devices thereby enabling mixed peripheral elements such as different types of memory to be coupled in the system while maintaining contiguous address space; or enabling peripheral devices so coupled to the first and second control units to operate in response to other units in an interleaved manner thereby decreasing the response time of the system.
REFERENCES:
patent: 3704453 (1972-11-01), Blackwell et al.
patent: 3919693 (1975-11-01), Anderson
Bartz C. T.
Honeywell Information Systems Inc.
Reiling Ronald T.
Shaw Gareth D.
Solakian John S.
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