Control Data Corp. (CDC)

Control Data Corp. (CDC) was a mainframe and supercomputer firm. CDC was one of the nine major United States computer companies through most of the 1960s.
For most of the 1960s, Seymour Cray worked at CDC and developed a series of machines that were the fastest computers in the world.
In the 1970s was part of the BUNCH (Burroughs, UNIVAC, NCR, Control Data and Honeywell).
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.

Wikipedia information