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((Short description|Supercomputer))
((For|the city in western Maryland|Frostburg, Maryland))
((Refimprove|date=June 2009))

[[File:Frostburg.jpg|thumbnail|200px|right|FROSTBURG on display at the [[National Cryptologic Museum]]. The light panels were used to check the usage of the processing nodes, and to run diagnostics.]]
'''FROSTBURG''' was a [[Connection Machine]] 5 (CM-5) [[Massively parallel (computing)|massively parallel]] [[supercomputer]] used by the US [[National Security Agency]] (NSA) to perform higher-level mathematical calculations. The CM-5 was built by the [[Thinking Machines Corporation]], based in [[Cambridge, Massachusetts]], at a cost of [[US$]]25 million. The system was installed at NSA in 1991, and operated until 1997.<ref>((cite web|url=http://royal.pingdom.com/2009/06/11/10-of-the-coolest-and-most-powerful-supercomputers-of-all-time/ |title=Ten of the coolest and most powerful supercomputers of all time |publisher=Royal.pingdom.com |date=2009-06-11 |access-date=2014-02-25))</ref> It was the first massively [[parallel computing|parallel processing computer]] bought by NSA, originally containing 256 processing nodes. The system was upgraded in 1993 with another 256 nodes, for a total of 512 nodes.<ref>((cite book|url=https://books.google.com/books?id=HhEC0q-O1ewC&q=FROSTBURG&pg=PA398 |title=The Geek Atlas: 128 Places Where Science and Technology Come Alive - John Graham-Cumming - Google Boeken |date=2009-05-21 |isbn=9780596555627 |access-date=2014-02-25|last1=Graham-Cumming |first1=John ))</ref> The system had a total of 500 billion 32-bit words (≈ 2 terabytes) of [[Computer data storage|storage]], 2.5 billion words (≈ 10 gigabytes) of [[computer memory|memory]], and could perform at a theoretical maximum 65.5 giga[[FLOPS]]. The operating system ''CMost'' was based on [[Unix]], but optimized for parallel processing.

FROSTBURG is now on display at the [[National Cryptologic Museum]].<ref>[[:File:Frostburg-nsa-description.jpg|Caption for FROSTBURG display in the National Cryptologic Museum, 2005]]</ref>

== See also ==
* [[HARVEST]]
* [[Cryptanalytic computer]]

== References ==
<references />

== External links ==
* [https://web.archive.org/web/20040805133901/http://www.mccullagh.org/image/10d-15/frostburg-connection-machine.html Another photograph of FROSTBURG] by [[Declan McCullagh]]

((National Security Agency))

[[Category:Cryptanalytic devices]]
[[Category:Supercomputers]]

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