A COMPUTER SYSTEM ACCOMMODATING PROGRAM CARTRIDGES

A microcomputer system employs internal read-only memory devices (3,4) and external read-only memory devices (41,42) in plug-in cartridges (2). Each cartridge includes jumper links (43.44,45,50,51,52) in leads (31,32,33,34,35,36) from the external memories through the cartridge socket (23) to a memo...

Full description

Saved in:
Bibliographic Details
Main Authors WEBB, GARY EDWARD, KUMMER, DAVID ALLEN
Format Patent
LanguageEnglish
Published 24.04.1991
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
PHYSICS
STATIC STORES
Online AccessGet full text

Cover

More Information
Summary:A microcomputer system employs internal read-only memory devices (3,4) and external read-only memory devices (41,42) in plug-in cartridges (2). Each cartridge includes jumper links (43.44,45,50,51,52) in leads (31,32,33,34,35,36) from the external memories through the cartridge socket (23) to a memory select unit and jumper links (38,39) in leads from earth through the cartridge socket to enable inputs (E) of the internal memories. By linking selected ones of the jumper links in the cartridge, the external memory can be used as an add-on memory or as a base memory replacing the internal memory.
Bibliography:Application Number: EP19840107804