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The CDC 8600 was the last of Seymour Cray's supercomputer designs while he worked for Control Data Corporation. As the natural successor to the CDC 6600 and CDC 7600, the 8600 was intended to be about 10 times as fast as the 7600, already the fastest computer on the market. The design was essentially four 7600's, packed into a very small ...
In addition to the redesign of the 8600, CDC had another project called the CDC STAR-100 under way, led by Cray's former collaborator on the 6600/7600, Jim Thornton. Unlike the 8600's "four computers in one box" solution to the speed problem, the STAR was a new design using a unit that we know today as the vector processor. By highly pipelining ...
After the 6600 shipped, the successor CDC 7600 system was the next product to be developed in Chippewa Falls, offering peak computational speeds of ten times the 6600. The failed follow-on to the 7600, the CDC 8600, was the project that finally ended his run of successes at CDC in 1972.
From 1968 to 1972, Seymour Cray of Control Data Corporation (CDC) worked on the CDC 8600, the successor to his earlier CDC 6600 and CDC 7600 designs. The 8600 was essentially made up of four 7600s in a box with an additional special mode that allowed them to operate lock-step in a SIMD fashion.
CDC 1604; CDC 3000 series; CDC 6000 series ... CDC 6000 series; CDC 7600; CDC 8600; CDC Cyber; CDC STAR-100; E. ETA10 This page was last edited on 19 April 2022, at ...
The classic example of this design is the CDC 8600, which packed four CDC 7600-like machines based on ECL logic into a 1 × 1 meter cylinder and ran them at an 8 ns cycle speed (125 MHz). Unfortunately, the density needed to achieve this cycle time led to the machine's downfall.
Seymour Cray left CDC in the early 1970s when they refused to continue funding of his CDC 8600 project. Instead they continued with the CDC STAR-100 while Cray went off to build the Cray-1. Cray's machine was much faster than the STAR, and soon CDC found itself pushed out of the supercomputing market.
CDC had a strong history of creating powerful supercomputers, starting with the CDC 6600. One of the most famous computer architects to emerge from CDC was Seymour Cray. After a disagreement with CDC management regarding the development of the CDC 8600, he went on to form his own supercomputer company, Cray Research.