Control Data Corporation (
CDC) was a
supercomputer firm. CDC was one of the nine major United States
computer companies through most of the 1960s; the others were
IBM,
Burroughs Corporation,
DEC,
NCR,
General Electric,
Honeywell,
RCA, and
UNIVAC. CDC was well-known and highly regarded throughout the industry at the time. For most of the 1960s,
Seymour Cray worked at CDC and developed a series of machines that were the fastest computers in the world by far, until Cray left the company to found
Cray Research (CRI) in the 1970s. After several years of losses in the early 1980s, in 1988 CDC started to leave the computer manufacturing business and sell the related parts of the company, a process that was completed in 1992 with the creation of
Control Data Systems, Inc. The remaining businesses of CDC currently operate as
Ceridian.