UNIVAC Series 90

The Univac Series 90 is a discontinued family of mainframe class computer systems from UNIVAC, first introduced in 1973. The low-end family members included the 90/25, 90/30 and 90/40 that ran the OS/3 operating system. The intermediate members of the family were the 90/60 and 90/70, while the 90/80, announced in 1976, was the high-end system. The 90/60 through 90/80 systems all ran a virtual-memory operating system, VS/9.

The Series 90 systems were the replacement for the UNIVAC 9000 series of low-end mainframe systems marketed by Sperry Univac during the 1960s.

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