Single chip MOS computer with expandable memory

Details Single chip MOS computer with expandable memory Single chip MOS computer with expandable memory

1978-02-13

1979-05-08

Chapnick, Melvin B.

Boots, shoes, and leggings

G06F 1300, G06F 748

Patent

active

041539338

ABSTRACT:
An MOS digital computer incorporated on a single chip (monolithic structure) which includes a central processing unit (CPU), random-access memory (RAM), and a programmable read-only memory (PROM). A program counter is used to fetch instructions stored in the erasable PROM, and may also be used to fetch instructions from an external memory. The PROM may also be externally addressed for testing, or may be electrically isolated from the remainder of the computer to permit execution of external instructions for testing the CPU and RAM.

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