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Created page with "'''Home * Hardware * UNIVAC 494''' FILE:UNIVAC-494-Console-J-Knapp.jpg|border|right|thumb|link=http://ed-thelen.org/comp-hist/vs-univac-494.html|UNIVAC 49..."
'''[[Main Page|Home]] * [[Hardware]] * UNIVAC 494'''
[[FILE:UNIVAC-494-Console-J-Knapp.jpg|border|right|thumb|link=http://ed-thelen.org/comp-hist/vs-univac-494.html|UNIVAC 494 Console <ref>[http://ed-thelen.org/comp-hist/UNIVAC-494-Console-J-Knapp.jpg UNIVAC 494 Console] from John Knapp, August 7, 2003 - [http://ed-thelen.org/comp-hist/vs-univac-494.html UNIVAC 494] by [http://ed-thelen.org/ Ed Thelen]</ref> ]]
'''UNIVAC 494''',<br/>
a 30-bit [https://en.wikipedia.org/wiki/Real-time_computing real-time] mainframe computer system by [https://en.wikipedia.org/wiki/UNIVAC UNIVAC] introduced in 1966, and member of the modular [https://en.wikipedia.org/wiki/UNIVAC_490 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 [https://en.wikipedia.org/wiki/Ones%27_complement ones' complement] 30 and 60-bit integer arithmetic, 60-bit or 10-digit [https://en.wikipedia.org/wiki/Binary-coded_decimal BCD] arithmetic, as well as double precision (1:11:48) [https://en.wikipedia.org/wiki/Floating_point floating point] arithmetic. The programmer had access to seven address modifying 15-bit [https://en.wikipedia.org/wiki/Index_register index registers] (Bi), one 30-bit [https://en.wikipedia.org/wiki/Accumulator_(computing) accumulator] (A) as well as one 30-bit auxiliary arithmetic register (Q) <ref> [https://en.wikipedia.org/wiki/UNIVAC_490 UNIVAC 490 from Wikipedia]</ref>.
=Chess Programs=
* [[David]]
* [[Frantz]]
=See also=
* [[UNIVAC 418]]
* [[UNIVAC 1100]]
=Manuals=
* [http://bitsavers.informatik.uni-stuttgart.de/pdf/univac/494/UP-4032r2_Univac494sys_1969.pdf UNIVAC 494 System Description] (pdf hosted by [http://bitsavers.informatik.uni-stuttgart.de/ bitsavers.org])
* [http://archive.computerhistory.org/resources/text/Remington_Rand/UNIVAC.494.19xx.102646132.pdf The UNIVAC 494 Real-Time System, 1966] (pdf hosted by [[The Computer History Museum]])
=External Links=
* [https://en.wikipedia.org/wiki/UNIVAC_490 UNIVAC 490 from Wikipedia]
* [http://ed-thelen.org/comp-hist/vs-univac-494.html UNIVAC 494] by [http://ed-thelen.org/ Ed Thelen]
=References=
<references />
'''[[Hardware|Up one Level]]'''
[[FILE:UNIVAC-494-Console-J-Knapp.jpg|border|right|thumb|link=http://ed-thelen.org/comp-hist/vs-univac-494.html|UNIVAC 494 Console <ref>[http://ed-thelen.org/comp-hist/UNIVAC-494-Console-J-Knapp.jpg UNIVAC 494 Console] from John Knapp, August 7, 2003 - [http://ed-thelen.org/comp-hist/vs-univac-494.html UNIVAC 494] by [http://ed-thelen.org/ Ed Thelen]</ref> ]]
'''UNIVAC 494''',<br/>
a 30-bit [https://en.wikipedia.org/wiki/Real-time_computing real-time] mainframe computer system by [https://en.wikipedia.org/wiki/UNIVAC UNIVAC] introduced in 1966, and member of the modular [https://en.wikipedia.org/wiki/UNIVAC_490 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 [https://en.wikipedia.org/wiki/Ones%27_complement ones' complement] 30 and 60-bit integer arithmetic, 60-bit or 10-digit [https://en.wikipedia.org/wiki/Binary-coded_decimal BCD] arithmetic, as well as double precision (1:11:48) [https://en.wikipedia.org/wiki/Floating_point floating point] arithmetic. The programmer had access to seven address modifying 15-bit [https://en.wikipedia.org/wiki/Index_register index registers] (Bi), one 30-bit [https://en.wikipedia.org/wiki/Accumulator_(computing) accumulator] (A) as well as one 30-bit auxiliary arithmetic register (Q) <ref> [https://en.wikipedia.org/wiki/UNIVAC_490 UNIVAC 490 from Wikipedia]</ref>.
=Chess Programs=
* [[David]]
* [[Frantz]]
=See also=
* [[UNIVAC 418]]
* [[UNIVAC 1100]]
=Manuals=
* [http://bitsavers.informatik.uni-stuttgart.de/pdf/univac/494/UP-4032r2_Univac494sys_1969.pdf UNIVAC 494 System Description] (pdf hosted by [http://bitsavers.informatik.uni-stuttgart.de/ bitsavers.org])
* [http://archive.computerhistory.org/resources/text/Remington_Rand/UNIVAC.494.19xx.102646132.pdf The UNIVAC 494 Real-Time System, 1966] (pdf hosted by [[The Computer History Museum]])
=External Links=
* [https://en.wikipedia.org/wiki/UNIVAC_490 UNIVAC 490 from Wikipedia]
* [http://ed-thelen.org/comp-hist/vs-univac-494.html UNIVAC 494] by [http://ed-thelen.org/ Ed Thelen]
=References=
<references />
'''[[Hardware|Up one Level]]'''
