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FROSTBURG was a Connection Machine 5 (CM-5) massively parallel supercomputer used by the US National Security Agency (NSA) to perform 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. It was the first massively 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. The system had a total of 500 billion 32-bit words (≈ 2 terabytes) of storage, 2.5 billion words (≈ 10 gigabytes) of memory, and could perform at a theoretical maximum 65.5 gigaFLOPS. The operating system CMost was based on Unix, but optimized for parallel processing.

FROSTBURG is now on display at the National Cryptologic Museum.

See also

• HARVEST
• Cryptanalytic computer

References

1. "Ten of the coolest and most powerful supercomputers of all time". Royal.pingdom.com. 2009-06-11. Retrieved 2014-02-25.
2. Graham-Cumming, John (2009-05-21). The Geek Atlas: 128 Places Where Science and Technology Come Alive - John Graham-Cumming - Google Boeken. ISBN 9780596555627. Retrieved 2014-02-25.
3. Caption for FROSTBURG display in the National Cryptologic Museum, 2005

External links

• Another photograph of FROSTBURG by Declan McCullagh

v t e National Security Agency
Locations	Alaska Mission Operations Center Colorado Cryptologic Center Consolidated Intelligence Center CSSG Dorsey Road European Cryptologic Center European Technical Center Fort Meade Friendship Annex Georgia Cryptologic Center Hawaii Cryptologic Center Interagency Training Center Kent Island Misawa Security Operations Center Multiprogram Research Facility Pine Gap RAF Menwith Hill Roaring Creek Room 641A Salt Creek Sugar Grove Texas Cryptologic Center Utah Data Center
Leaders	Ralph Canine John A. Samford Laurence Hugh Frost Gordon Blake Marshall Carter Noel Gayler Samuel C. Phillips Lew Allen Bobby Ray Inman Lincoln D. Faurer William Eldridge Odom Bill Studeman John Michael McConnell Kenneth Minihan Michael Hayden Keith B. Alexander Michael S. Rogers Paul Nakasone
Divisions	CSS Special Collection Service SSO TAO NSOC
Technology	ANT catalog FROSTBURG HARVEST Secure Terminal Equipment (STE) STU-I STU-II STU-III WARRIOR PRIDE
Controversy	Global surveillance disclosures (2013–present) Church Committee Edward Snowden LOVEINT James Bamford NSA warrantless surveillance (2001–2007) Pike Committee Russ Tice Thomas Andrews Drake Thomas Tamm Matthew Aid
Programs	Boundless Informant Dropmire ECHELON Fairview Insider Threat Program MUSCULAR MYSTIC PRISM Real Time Regional Gateway Stellar Wind TRAILBLAZER Turbulence Upstream XKeyscore
Databases	DISHFIRE Main Core MAINWAY MARINA PINWALE
Other	Dundee Society Institute for Defense Analyses National Cryptologic Museum National Cryptologic School National Vigilance Park NSA Hall of Honor VENONA Vulnerabilities Equities Process Zendian Problem

• Cryptanalytic devices
• Supercomputers