[davidf18]

There are YouTube videos of Seymour Cray.

Learn about the CDC 6600 and the architecture compared with top IBM 360 computers. Learn about Cray I.

Cray was the builder of the fastest computers in the world for a long time. Always sold early machines of each model to scientific govt labs and NSA. The first 6600s were delivered to Livermore and Los Alamos (Wikipedia CDC 6600).

With less than 30 people Cray built a computer (the 6600) about 2 times faster than anything IBM with its massive budget could build. There is a famous letter by IBM's Chief Watson Jr. about this fact at The Computer History Museum website.

When IBM used ICs for the 360's, Cray still used transistors for the CDC 6600. His reasoning is great.