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a 30-bit real-time mainframe computer system by UNIVAC introduced in 1966, and member of the modular UNIVAC 490 series. The 494 has a memory cycle time of 750 nanoseconds. Core memory starts at 16 KiWords and was expandable to 2 x 128 KiWords. The ALU features ones' complement 30 and 60-bit integer arithmetic, 60-bit or 10-digit BCD arithmetic, as well as double precision (1:11:48) floating point arithmetic. The programmer had access to seven address modifying 15-bit index registers (Bi), one 30-bit accumulator (A) as well as one 30-bit auxiliary arithmetic register (Q) [1].
UNIVAC 494 Console [2]

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See also


External Links


  1. ^ UNIVAC 490 from Wikipedia
  2. ^ UNIVAC 494 Console from John Knapp, August 7, 2003 - UNIVAC 494 by Ed Thelen

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