IBM System/3X was a line of general business midrange computers that were developed and marketed by IBM beginning in 1975. The IBM AS/400, a successor system that was introduced in 1988, was based on a combination of the System/36 and System/38 computers. The IBM i operating system running on top of IBM Power Systems maintains backwards compatibility with some of the System/3x series operating systems.
Series IBM System/32, released 1975 IBM System/34, released 1978 IBM System/36, released 1983 IBM System/38, released 1979
See also IBM midrange computer IBM System/3 IBM System (disambiguation)
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