UNIVAC 1101

The UNIVAC 1101, also called ERA 1101 and ATLAS I, UNIVAC was a computer system designed by Engineering Research Associates ( ERA ) and built by Remington Rand 1950.

Originally built under the code name Atlas for the NSA, the machine was referred to as commercial sale UNIVAC 1101. The code name Atlas is based on a comic strip that was popular at that time.

The UNIVAC 1101 had the following properties:

  • Length: 11.5 m
  • Width: 6 m
  • Tubes: 2695
  • Drum memory: 48 kB ( access time: 32 microseconds to 17 ms)
  • Core memory: 12 kB ( access time: 10 microseconds )

Two Atlas systems were built and delivered in 1950 and 1953. A third machine was built for their own purposes, they wanted the computing resources to sell the customer on a time basis. However, this business model was not yet mature enough, and the third machine in 1954 the Georgia Institute of Technology presented, where she was until 1961 in use.

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