Computer system for automatically reconfigurating memory space t

Details Computer system for automatically reconfigurating memory space t Computer system for automatically reconfigurating memory space t

1987-03-13

1990-06-05

Williams, Jr., Archie E.

Boots, shoes, and leggings

3642327, 3642383, 3642384, 3642328, 364240, 364245, 3642452, 36424531, G06F 902, G06F 906, G06F 1300, G06F 1310

Patent

active

049319230

ABSTRACT:
A personal computer system includes a main circuit board having a central processing unit and expansion slots each of which is adapted to receive a printed circuit board card. The main circuit board further includes memory, a 32-bit address bus with control signals associated therewith, and input/output circuitry. The slot is coupled to the 32-bit address bus, which is substantially a NUBUS bus, and the slot includes distinct identification line means which provide the slot with an identification number (distinct number) in the computer system. The computer system reserves 256-megabytes of memory space ranging from location $X000 0000 to location $XFFF FFFF for memory on a card in a slot having a distinct number equal to $X.

REFERENCES:
patent: 3675083 (1972-07-01), White
patent: 3710324 (1973-01-01), Cohen et al.
patent: 3993981 (1976-11-01), Cassarino, Jr. et al.
patent: 4000485 (1976-12-01), Barlow et al.
patent: 4250563 (1981-02-01), Struger
patent: 4368514 (1983-01-01), Persaud
patent: 4467436 (1984-08-01), Chance et al.
patent: 4633402 (1986-12-01), Flinchbaugh

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