Input/output subsystem using card reader-peripheral controller

Details Input/output subsystem using card reader-peripheral controller Input/output subsystem using card reader-peripheral controller

1980-09-09

1983-06-28

Chan, Eddie P.

Boots, shoes, and leggings

G06F 300

Patent

active

043909647

ABSTRACT:
An input/output subsystem for controlling data transfer between a peripheral device, such as a card reader-peripheral unit and a main host computer. The subsystem includes: a base module which supports one or more peripheral-controllers (card reader-data link processors) which receive and process data from card readers and store them in a buffer memory for later transmittal to the host system; a Distribution control circuit which selectively connects and disconnects a data link processor to the host system; a maintenance card means for testing and checking the functioning of the data link processors.

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patent: 4200930 (1980-04-01), Rawlings et al.
patent: 4313162 (1982-01-01), Baun et al.
patent: 4322792 (1982-03-01), Baun

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