Boots – shoes – and leggings
Patent
1979-12-14
1982-01-26
Zache, Raulfe B.
Boots, shoes, and leggings
G06F 300
Patent
active
043131620
ABSTRACT:
An input-output subsystem for relieving the housekeeping functions of a main host computer and for controlling and transferring data between selected peripheral terminal units and the main host computer. The host computer system connects to a base module through a message level interface bus. The base module houses a plurality of data link processors, each of which controls data transfers to and from a specific peripheral terminal unit. The base module connects all data link processors with a common backplane and provides a distribution control card for connecting and disconnecting selected data link processors to the host system. The base module includes a maintenance card which provides maintenance and diagnostic functions for the data link processors in the base module. Upon initiation of a selected data link processor by the host system and the receipt of an I/O descriptor command, the data link processor then takes on the functions of executing data transfers to and from a peripheral terminal unit and reconnects to the main host system using a descriptor link which identifies the task originally initiated by the host computer system. Upon completion of the data transfer task, the data link processor also sends a result descriptor signal which notifies the main system of the completion, incompletion or error operation of the system. A console unit which includes a microprocessor and program disk is connected to the base module for in-depth diagnostic and checking purposes.
REFERENCES:
patent: 4041473 (1977-08-01), Bardotti et al.
patent: 4100601 (1978-07-01), Kaufman et al.
Baun Kenneth W.
Millers, II Donald A.
Burroughs Corporation
Cass Nathan
Kozak Alfred W.
Peterson Kevin R.
Zache Raulfe B.
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