On Jan 24, 2017 7:57 PM, "Chuck Guzis" <ccl...@sydex.com> wrote: > The 7070 was very early (1958) and is probably the first (or close to > the first) IBM transistorized computer.
The 7070 was announced in Sept. 1958, but did not ship until April 1960. The first IBM computing device to use transistors and no vacuum tubes was the 608 calculator, shipped in December 1957. IBM's first transistorized computers were the 7090 (36-bit scientific, transistorized version of 709) shipped in November 1959, and the 1401, shipped in early 1960, before the 7070. Source: _IBM's Early Computers_, Bashe, Johnson, Palmer, and Pugh, 1986, MIT Press
