Peripheral device reassignment control technique

Details Peripheral device reassignment control technique Peripheral device reassignment control technique

1974-04-22

1976-04-06

Zache, Raulfe B.

Communications: electrical

Digital comparator systems

G06F 300

Patent

active

039493806

ABSTRACT:
A plurality of peripheral devices having physical addresses are accessed by a host processor by use of logical addresses which are utilized by the various programs in a multiprocessing environment. Input/output tables are arranged to include pointers for relating the logical address provided by a programmer to the physical address of the device thereby providing necessary device specific information to the peripheral controller coupled with the peripheral devices. The input/output tables are structured so that pointers relating the physical and logical addresses may be changed to reassign the logically addressed device to another device and accordingly to point to another physical address.

REFERENCES:
patent: 3340512 (1967-09-01), Hauck et al.
patent: 3581286 (1971-05-01), Beausoleil
patent: 3593302 (1971-07-01), Saito et al.
patent: 3639909 (1972-02-01), Hauck et al.
patent: 3792448 (1974-02-01), Bennett et al.

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