UNIVAC II

The UNIVAC II was a further development of the UNIVAC I. Matured was especially the main memory at 2,000 to 10,000 machine words, UNISERVO II magnetic tapes, which are either the old UNIVAC I could use magnetic tapes or the new based on mylar tapes. Some circuits have been implemented on the basis of transistors ( Univac the tube II was still based). The Univac II was fully compatible with the I Univac this. Both in terms of the program instructions and data structures

Properties of the UNIVAC II

  • Internal Numeric Encoding: binary coded decimal system
  • Byte length of machine word: 12
  • Byte length instruction code: 6
  • Arithmetic System: Fixed point number
  • 5200 vacuum tubes
  • 18,000 crystal diodes
  • 120 transistors
  • Power consumption: 124.7 kW
  • Height: 2.6 m
  • Length: 4.4 m
  • Weight: 7257 kg
  • Drum memory machines costing 10,000 words
  • Magnetic tapes UNISERVO - II 100 in / sec
  • Keyboard
  • Hole cards by Magnetbandkonvertierer 240 cards / minute
  • Paper by Magnetbandkonvertierer 200 characters / second

The UNIVAC II was used for different customers: For the U.S. Navy, which used the machine for inventory management, the U.S. Department of Agriculture, which used the machine for calculating and transaction management of the " wheat price " in over 31 states, the Metropolitan Life Insurance Company, which four machines owned and machines for payroll, accounts receivable, billing and other technical calculations began, the Pacific Life Insurance Company with a similar application as the Metropolitan Insurance, as well as in the United States Steel Corporation, which used the machine for the solution of mathematical problems.

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