Microdata

Microdata Corporation was an Irvine, California based computer company, developing hardware and operating systems to run its REALITY environment. It later was taken over by its International distributor CMC Leasings, which in turn was taken over in 1983 by McDonnell Douglas Corporation.The REALITY name was given to Microdata's computer system and the operating system - a version of the Pick operating system. At the time, Microdata owned rights to the Pick Operating system in parallel with Dick Pick - who developed it with Microdata in the early 1970s.The original machine was a Microdata 800 microcomputer first made in 1969. Later this evolved into the Microdata 1600, a sixteen bit firmware based processor, such that the first REALITY system was sold commercially in 1973. The unique feature of the early Microdata processors was that the microcode was accessible to the user and allowed the creation of custom assembler level instructions. The Reality system design made extensive use of this capability.
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Le Multi-8 était un ordinateur Microdata 800 fabriqué sous licence par la société Intertechnique à partir de 1972. Il était utilisé dans l'industrie pour le controle de processus, dans les centrales nucléaires, et dans des applications scientifiques, en particulier la cristallographie. Le Multi-8 était une machine 8 bits, fabriquée à partir de circuits intégrés, et disposant d'une mémoire vive de 8 à 12 Ko. L'originalité du Multi-8 (et du Microdata 800) est que son jeu d'instructions pouvait etre redéfini en utilisant des diodes. Le successeur du Multi-8 fut le Multi-4, basé sur le Microdata 1600.
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Mikrodata