CDC3600 logic boards - K series
Donor: Steve Cunningham
The CDC3600 was the first computer in Control Data Corporation's 3000 line, introduced in June 1963. It was designed for scientific computing applications, used a 48-bit word size, and could execute 1 million instructions per second (1 MIP). The 3000 series had both 24-bit (compatible with the lower-3000 series machines, packed 2 per word in the 3600's case) and 48-bit instructions; all models used core memory and and one's complement arithmetic.
The CDC3000 was a popular series, sustaining Control Data for the duration of the development of the more powerful CDC6000 series. The 3000 series' adopters included the IRS and several Eastern Bloc countries, among others. Additionally, Oregon State University maintained a CDC3300 through approximately 1980, running an independently developed operating system called OS3 (Oregon State Open Shop Operating System).
These images depict our collection of digital logic boards in the K series. The following models are included: K17, K22, K23, K24, K25, K26, K27, K31, K33, K35, K67, K71
References: http://en.wikipedia.org/wiki/CDC_3000 http://static.cray-cyber.org/Documentation/PrintedCircuit/2_LogicCards.pdf (documentation for some of the inverter boards in the CA, HA, and K series)
