Cray X-MP Supercomputer E.C.L. Board & HR-3020 FuctionalDocumentation~400 pages

Cray X-MP Supercomputer E.C.L. Board,Re-Engraving & Certificate of Authentically Free HR-3020 until it lasted. HR-3020 Fuctional Documentation ~400 pages. Seymour R. Cray earned a bachelor of science degree in electrical engineering in 1950 from the University of Minnesota. In 1951 he earned a master of science degree in applied mathematics from the same institution.

From 1950 to 1957, Mr. Cray held several positions with Engineering Research Associates (ERA), St. Paul, Minnesota. At ERA, he worked on the development of the ERA 1101 scientific computer for the U.S. government. Later, he had design responsibility for a major portion of the ERA 1103, the first commercially successful scientific computer. While with ERA, he worked with the gamut of computer technologies, from vacuum tubes and magnetic amplifiers to transistors.

Mr. Cray has spent his entire career designing large-scale computer equipment. He was one of the founders of Control Data Corporation (CDC) in 1957 and was responsible for the design of that company's most successful large-scale computers, the CDC 1604, 6600 and 7600 systems. He served as a director for CDC from 1957 to 1965 and was senior vice president at his departure in 1972.

In 1972, Cray founded Cray Research, Inc. to design and build the world's highest performance general-purpose
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