UNIVAC 490

The UNIVAC 490 was a 30-bit word core memory machine with 16K or 32K words; 4.8 microsecond cycle time made by UNIVAC. It was a commercial derivative of a computer Univac Federal Systems developed for the U..S. Navy. That system was the heart of the Naval Tactical Data System which pioneered the use of shipboard computers for air defense. The military version went by a variety of names: AN/USQ-20, MIL-1206 and CP642. Seymour Cray designed this system before he left UNIVAC to found Control Data Corporation.