Xerox Data Systems Model 940 - definição. O que é Xerox Data Systems Model 940. Significado, conceito
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O que (quem) é Xerox Data Systems Model 940 - definição

AMERICAN COMPUTER COMPANY
Xerox Data Systems; SDS 92
  • An XDS Sigma 9 at the [[Living Computer Museum]], Seattle, Washington, 2014

Xerox Data Systems Model 940      
<computer> (SDS 940, XDS 940) A time-sharing system, announced in February 1966, developed by {Scientific Data Systems} with help from The {University of California at Berkeley} and Tymshare. SDS 940 was backward compatible with SDS's previous systems (except the 12-bit SDS 92). It had monitor and user modes, dynamic program relocation, automatic memory fragmentation, and system protection. After 1968 Xerox bought out SDS and renamed the SDS machines "Xerox Data Systems" (XDS). Xerox then produced the {XDS 530}. (2004-06-17)
Scientific Data Systems         
<company> (SDS) The company that produced the SDS 940 (later renamed XDS 940). Around 1968 Xerox bought out SDS and renamed the SDS machines to XDS. [What else?] (2001-03-03)
SDS 92         
<computer> A 12-bit computer from Scientific Data Systems which preceded the Xerox Data Systems Model 940. (2001-03-03)

Wikipédia

Scientific Data Systems

Scientific Data Systems (SDS), was an American computer company founded in September 1961 by Max Palevsky and Robert Beck, veterans of Packard Bell Corporation and Bendix, along with eleven other computer scientists. SDS was an early adopter of integrated circuits in computer design and the first to employ silicon transistors. The company concentrated on larger scientific workload focused machines and sold many machines to NASA during the Space Race. Most machines were both fast and relatively low priced. The company was sold to Xerox in 1969, but dwindling sales due to the oil crisis of 1973–74 caused Xerox to close the division in 1975 at a loss of hundreds of millions of dollars. During the Xerox years the company was officially Xerox Data Systems (XDS), whose machines were the Xerox 500 series.