Computer revision port

Details Computer revision port Computer revision port

1983-11-30

1987-03-10

Thomas, James D.

Boots, shoes, and leggings

371 15, G06F 900, G06F 1100

Patent

active

046495142

ABSTRACT:
Circuitry for automatically configuring the operating system software of a computer is disclosed. The circuitry includes a revision port which generates a unique eight-bit code indicating the latest revision level of the main circuit board in the computer. Each time revisions are made in the board during manufacturing or each time a circuit board containing new revisions is put into the system by maintenance or service personnel, the eight-bit code generated by the port is changed. During the process of configuring the operating system software, the central processing unit reads the code generated by the port and uses the revision information to load and link software routines which will operate properly with the revised circuitry.

REFERENCES:
patent: 3928830 (1975-12-01), Bellamy et al.
patent: 4138599 (1979-02-01), Munter
patent: 4234926 (1980-11-01), Wallace et al.
patent: 4468731 (1984-08-01), Johnson et al.
patent: 4484270 (1984-11-01), Quernemoen et al.
patent: 4578773 (1986-03-01), Desai et al.

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