IBM's second successful commercial computer (the first was the 650). Introduced in 1959 and offered until 1971, the 1401 was an outstanding success. More than 12,000 systems were installed ...

[Ken Shirriff] is making those good ol’ days come alive with a series of articles relating to his work with hardware at the Computer History ... of the IBM 1401’s qui-binary arithmetic.

IBM announced a $150 billion investment in the U.S. over the next five years. The funds include $30 billion to advance ...

We’ve read a number of histories of the IBM PC and lived through that time, too. But we enjoyed [Gareth Edwards’] perspective in a post entitled The Misfit who Built the IBM PC. The titular ...