UNIVAC 490

UNIVAC 490 RTS Photo by The Department of the US Army, Ballistic Research Laboratories

The UNIVAC 490 Real Time System was built in 1961 by Sperry Rand . The Univac 490 was a system that worked like a communication network. Hundreds of receiving and transmitting devices (terminals) could be placed geographically scattered. These communication devices then transmitted data to the central processor unit, which carried out the calculations. This architecture resulted in a geographically distributed, transaction-based real-time environment.

Properties of the UNIVAC 490 RTS

• Internal numerical coding: binary
• Byte length machine word: 30
• Byte length instruction code: 30
• Arithmetic system: fixed point number
• 37,543 crystal diodes
• 13,819 transistors
• Drum storage
• Magnetic tapes UNISERVO-III 130 in / sec
• Console terminals

Web links

• Department of the Army, Ballistic Research Laboratories - Maryland, A third survey of domestic electronic digital computing systems, Report No 1115, 1961

See also

• UNIVAC