1944    IBM dedicates the first program-controlled calculator, the Automatic Sequence Controlled Calculator (known best as the Harvard Mark I).

1954    Georgetown-IBM experiment: the first public demonstration of a machine translation system, is held in New York at the head office of IBM.

1956    IBM introduces the first computer disk storage unit, the RAMAC 305.

1969    IBM CICS is made generally available for the 360 mainframe computer.

1996    The IBM supercomputer Deep Blue defeats Garry Kasparov for the first time.