AN/UYK-20

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The AN/UYK-20 "Data Processing Set" was a ruggedized small computer manufactured by Univac and used by the United States Navy for small and medium-sized shipboard and shore systems built in the 1970s. It featured non-volatile magnetic core memory and was housed in a heavy-duty metal cube-shaped box which was designed to fit through a 25-inch circular hatch.

In 1972, in response to the proliferation of small computer types in the Navy's inventory, the Chief of Naval Material mandated the use of the AN/UYK-20(V) in systems requiring a small digital processor.^[1]

Programmers and operators sometimes colloquially referred to this computer as the "Yuck Twenty."

[edit] References

^ "HISTORY OF THE AN/UYK-20(V) DATA PROCESSING SYSTEM ACQUISITION AND ITS IMPACT ON TACTICAL SYSTEMS DEVELOPMENT," US Navy Document# NPS-36J876091, September 1976