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The UNIVAC 1103A was an upgraded version of the UNIVAC 1103 introduced by Sperry Rand in March, 1956.

The UNIVAC 1103A had up to 12,288 words of 36 bit magnetic core memory, in one to three banks of 4,096 words each.

Fixed-point numbers had a 1 bit sign and a 35 bit value, with negative values represented in one's complement format. Floating-point numbers had a 1 bit sign, an 8 bit characteristic, and a 27 bit mantissa. Instructions had a 6 bit operation code and two 15-bit operand addresses. Early computers Mainframe computers

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Topics: UNIVAC 1103A, UNIVAC I, UNIVAC 1101, UNIVAC 1102, UNIVAC 1005...

UNIVAC IThe UNIVAC I UNIV ersal A utomatic C omputer I was the first commercial computer made in the United States. It was designed by J. Presper Eckert and John Mauchly, the men behind the first American electronic computer, the ENIAC. During the years before su	UnivacUnivac began as the "business" computer division of Remington Rand formed by the purchase of the Eckert-Mauchly Computer Corporation in 1950. Univac® Sperry Rand label In 1953 or 1954 Remington Rand merged their tabulating machine division in Norwalk, Con	UNIVAC 1101The UNIVAC 1101 or ERA 1101 was a computer system designed by Engineering Research Associates (ERA) and built by the Remington Rand corporation in the 1950s. It was the first stored program computer in the US. Originally designed for the US Navy's Bureau
UNIVAC 1102The UNIVAC 1102 or ERA 1102 was designed by Engineering Research Associates for the United States Air Force's Arnold Engineering Development Center in Tullahoma, Tennessee in response to a request for proposal issued in 1950. The Air Force needed three co	UNIVAC 1005The UNIVAC 1005 an enhanced version of the UNIVAC 1004, was introduced in February 1966. The main improvement over the 1004 was conversion from external plugboard program to internal stored program. The machine saw extensive use by the US Army, including	UNIVAC 1004The UNIVAC 1004 was a plugboard-programmed punch card data processing system, introduced in 1962, by Univac. Total memory was 961 characters (6 bits) of core memory. Peripherals were a card reader (400 cards/minute), a card punch (200 cards/minute) using
UNIVAC 1104	UNIVAC 1106	UNIVAC 1107
UNIVAC 1108	UNIVAC 1110	UNIVAC 1100/2200 series
UNIVAC 1105	UNIVAC 1103A	UNIVAC 1103

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