Datasaab D2

D2 was a concept and prototype computer designed by Datasaab in Linköping, Sweden.

Experience from the D2 prototype was the foundation for Datasaab's continued development both of the civilian D21 computer and military aircraft models.

The commercial D21, launched already in 1962, used magnetic tape, 24 bit words, and unified program and data memory.

Otherwise it was close to the D2 prototype, while a working airborne computer required a lot more miniaturization.

The D2 is on exhibit at IT-ceum, the computer museum in Linköping, Sweden.