Computers: Cray-1, 1976-1978

(3474) Computer contract signing, Cray-1a, Francis Bretherton, Lionel Dicharry, Paul Rotar, G. Stuart Patterson, Clifford Murino, John Firor, Seymour Cray, Harriet Crowe, May 12, 1976; (3985B) Cray-1 computer, April 4, 1977; (4141) Cray-1 engineers, July 18, 1977; (4190B) Cray-1 computer, August 30, 1977; (4196BC) Cray-1 computer, September 2, 1977; (4481) Computer hardware, Cray-1, two packets: 1) Frames 1-58, 2) Frames 59-104, March 1, 1978.