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What (who) is Cray-1 - definition
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![EPFL]]](https://commons.wikimedia.org/wiki/Special:FilePath/Cray 1 IMG 9126.jpg?width=200 "EPFL]]")
![Cray-1 at [[Computer History Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Cray-1 (1).jpg?width=200 "Cray-1 at [[Computer History Museum]]")
![Cray-1 at [[Computer History Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Cray-1-Computer History Museum-20070512.jpg?width=200 "Cray-1 at [[Computer History Museum]]")
![Cray-1 at [[Deutsches Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Cray-1-deutsches-museum.jpg?width=200 "Cray-1 at [[Deutsches Museum]]")
![The Cray-1 at the [[Science Museum, London]]](https://commons.wikimedia.org/wiki/Special:FilePath/Cray1LondonScienceMuseum.jpg?width=200 "The Cray-1 at the [[Science Museum, London]]")
![Cray-1 at the [[Computer Museum of America]], Roswell, Georgia, US](https://commons.wikimedia.org/wiki/Special:FilePath/Cray-1 at Computer Museum of America.jpg?width=200 "Cray-1 at the [[Computer Museum of America]], Roswell, Georgia, US")
.jpg?width=200 "Logic boards")
.jpg?width=200 "Some of the 50 miles of wiring")
![Cray-designed HLRN-III ''Konrad'' (XC30/XC40) at [[Zuse Institute Berlin]], 2014](https://commons.wikimedia.org/wiki/Special:FilePath/HLRN III Konrad Cray C30 XC40.jpg?width=200 "Cray-designed HLRN-III ''Konrad'' (XC30/XC40) at [[Zuse Institute Berlin]], 2014")
![With a [[Cray-1]]](https://commons.wikimedia.org/wiki/Special:FilePath/Seymour Cray.jpg?width=200 "With a [[Cray-1]]")
Wikipedia
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The Cray-1 was a supercomputer designed, manufactured and marketed by Cray Research. Announced in 1975, the first Cray-1 system was installed at Los Alamos National Laboratory in 1976. Eventually, 80 Cray-1s were sold, making it one of the most successful supercomputers in history. It is perhaps best known for its unique shape, a relatively small C-shaped cabinet with a ring of benches around the outside covering the power supplies and the cooling system.
The Cray-1 was the first supercomputer to successfully implement the vector processor design. These systems improve the performance of math operations by arranging memory and registers to quickly perform a single operation on a large set of data. Previous systems like the CDC STAR-100 and ASC had implemented these concepts but did so in a way that seriously limited their performance. The Cray-1 addressed these problems and produced a machine that ran several times faster than any similar design.
The Cray-1's architect was Seymour Cray; the chief engineer was Cray Research co-founder Lester Davis. They would go on to design several new machines using the same basic concepts, and retained the performance crown into the 1990s.
