SDS Sigma series
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The SDS Sigma series is a series of third generation computers that were introduced by Scientific Data Systems of the United States in 1966. The first machines in the series are the 16-bit Sigma 2 and
Front panel of the SDS Sigma 5 computer at the Computer History Museum, Mountain View, California
An XDS Sigma 9 at the Living Computer Museum, Seattle, Washington, US, 2014
RAD with cover open and disk pulled out for maintenance
The history of computing hardware starting at 1960 is marked by the conversion from vacuum tube to solid-state devices such as transistors and then integrated circuit chips. Around 1953 to 1959, discr
SDS Sigma series
…The SDS Sigma series is a series of third generation computers that were introduced by Scientific Data Systems of the United States in 1966. The first machines in the series are the 16-bit Sigma 2 and the 32-bit…
1969: Data General Nova
1976: Cray-1 supercomputer
Time-sharing computer terminals connected to central computers, such as the TeleVideo ASCII character mode smart terminal pictured here, were sometimes used before the advent of the PC.
1973: Micral N