CDC Brochure - The 6600 Supercomputer This brochure was apparently printed in 1963 before a machine had (openly) been shipped to a customer. I first saw the brochure around 1966 or 1967 when I was working in The Netherlands for a British computer manufacturer and it was sent to me as part of a package of recruiting information.

 

The Operator's keyboard only supported upper case letters.. (There was no lower case)     "Cordwood" module 3" x 2.5" x 0.75" (Approx 8 x 7 x 2 cm). Two rows of 15 pins in back, and 6 connectors on front for test probes. Discrete components (transistors, resistors, toroid rings, etc. ) sandwiched between two printed-circuit boards. Also surrounding memory module below.   Size 7" x 7" x 4" (approx 18 x 18 x 10 cm) with the face and rear plates made of 1/4 inch steel. Each such module contained 4096 words of 12 bits Storage capacity 37,588,992 12-bit words (approx 56 Mbytes in todays terms) spread over 12 surfaces on 7 disks (1 spare). Each disk 1 meter in diameter.