UNIVAC 1102

{{refimprove|date=December 2009}} thumb|right|UNIVAC 1102 The '''UNIVAC 1102''' or '''ERA 1102''' was designed by Engineering Research Associates for the United States Air Force's Arnold Engineering Development Center in Tullahoma, Tennessee in response to a request for proposal issued in 1950 {{Citation needed|date=October 2025}} and awarded to ERA in October of 1952.<ref name="Warren Burell">{{Cite web|url=https://vipclubmn.org/Articles/ERA1102.pdf |editor=Lowell Benson |author=Warren Burrell |title=ERA 1102 computer in service at AEDC from 1954-1966|website=VIP Club |issue=140 |date=May 2010 |department=Our Stories |access-date=2017-11-12}}</ref> The Air Force needed three computers to do data reduction for two wind tunnels and an engine test facility.

The 1102 was a variant of the UNIVAC 1101, using its 24-bit word and a smaller (only 8,192 words) drum memory. The machine had 2,700 vacuum tubes, weighed {{Convert|14000|lb|ST MT}}, and occupied {{Convert|122|sqft}} of floor area.<ref name="Warren Burell" />

The computers were connected to data channels coming from the wind tunnels and the engine facility. There were five typewriters for printed output, five paper tape punches, and four pen plotters to produce graphs.

The three computers and related peripherals were delivered between July 1954 and July 1956 at a total price of $1,400,000.<ref>{{Cite web|url=https://vipclubmn.org/Articles/ERA1102.pdf |editor=Lowell Benson |author=Warren Burrell |title=ERA 1102 computer in service at AEDC from 1954-1966|website=VIP Club |issue=140 |date=May 2010 |department=Our Stories |access-date=2017-11-12}}</ref> Software for the computers was developed entirely at the Arnold Engineering Development center. All programming was done in machine code (assemblers and compilers were never developed).

== References == {{Reflist}}

{{DEFAULTSORT:Univac 1102}} 1102 Category:24-bit computers Category:Vacuum tube computers Category:Military computers Category:Computer-related introductions in 1953