Xerox Data Systems Model 940 (SDS 940, XDS 940) A system, announced in February 1966, developed by with help from The and . SDS 940 was with SDS's previous systems (except the 12-bit ). It had and user modes, dynamic program relocation, automatic memory fragmentation, and system protection. After 1968 bought out SDS and renamed the SDS machines "Xerox Data Systems" (XDS). (2001-03-03)
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