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- SWAC_(computer) abstract "The SWAC (Standards Western Automatic Computer) was an early electronic digital computer built in 1950 by the U.S. National Bureau of Standards (NBS) in Los Angeles, California. It was designed by Harry Huskey. Like the SEAC which was built about the same time, the SWAC was a small-scale interim computer designed to be built quickly and put into operation while the NBS waited for more powerful computers to be completed (in particular, the RAYDAC by Raytheon).The machine used 2,300 vacuum tubes. It had 256 words of memory, using Williams tubes, with each word being 37 bits. It had only seven basic operations: add, subtract, and multiply (single precision and double precision versions); comparison, data extraction, input and output.Several years later a drum memory was added When the SWAC was completed in July 1950, it was the fastest computer in the world. It continued to hold that status until the IAS computer was completed a year later. It could add two numbers and store the result in 64 microseconds. A similar multiplication took 384 microseconds. It was used by the NBS until 1954 until the Los Angeles office was closed, and then by UCLA until 1967 (with modifications). It was charged out there for $40 per hour.In 1952, Raphael M. Robinson used the SWAC to discover five Mersenne primes—the largest prime numbers known at the time, with 157, 183, 386, 664 and 687 digits.".
- SWAC_(computer) thumbnail Museum_of_Science,_Boston,_MA_-_IMG_3160.JPG?width=300.
- SWAC_(computer) wikiPageExternalLink 00586073.pdf.
- SWAC_(computer) wikiPageExternalLink 107291.
- SWAC_(computer) wikiPageExternalLink 41420.
- SWAC_(computer) wikiPageID "1965369".
- SWAC_(computer) wikiPageRevisionID "590939058".
- SWAC_(computer) hasPhotoCollection SWAC_(computer).
- SWAC_(computer) subject Category:Early_computers.
- SWAC_(computer) subject Category:One-of-a-kind_computers.
- SWAC_(computer) subject Category:Vacuum_tube_computers.
- SWAC_(computer) type Artifact100021939.
- SWAC_(computer) type Computer103082979.
- SWAC_(computer) type Device103183080.
- SWAC_(computer) type EarlyComputers.
- SWAC_(computer) type Instrumentality103575240.
- SWAC_(computer) type Machine103699975.
- SWAC_(computer) type Object100002684.
- SWAC_(computer) type One-of-a-kindComputers.
- SWAC_(computer) type PhysicalEntity100001930.
- SWAC_(computer) type Whole100003553.
- SWAC_(computer) comment "The SWAC (Standards Western Automatic Computer) was an early electronic digital computer built in 1950 by the U.S. National Bureau of Standards (NBS) in Los Angeles, California. It was designed by Harry Huskey.".
- SWAC_(computer) label "SWAC (computer)".
- SWAC_(computer) label "SWAC".
- SWAC_(computer) label "SWAC".
- SWAC_(computer) label "Standards Western Automatic Computer".
- SWAC_(computer) sameAs SWAC.
- SWAC_(computer) sameAs SWAC.
- SWAC_(computer) sameAs Standards_Western_Automatic_Computer.
- SWAC_(computer) sameAs m.069h_r.
- SWAC_(computer) sameAs Q1629241.
- SWAC_(computer) sameAs Q1629241.
- SWAC_(computer) sameAs SWAC_(computer).
- SWAC_(computer) wasDerivedFrom SWAC_(computer)?oldid=590939058.
- SWAC_(computer) depiction Museum_of_Science,_Boston,_MA_-_IMG_3160.JPG.
- SWAC_(computer) isPrimaryTopicOf SWAC_(computer).
