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Ordnance Discrete Variable Automatic Computer
The ORDVAC (Ordnance Discrete Variable Automatic Computer), is an early computer built by the University of Illinois for the Ballistic Research Laboratory
ORDVAC
Ballistic Research Laboratories Electronic Scientific Computer
and was designed to take over the computational workload of EDVAC and ORDVAC, which themselves were successors of ENIAC. It began operation in 1962.
BRLESC
Series of supercomputers built between 1951 and 1974
role in the computer designs. ORDVAC was the first of two computers built under contract at the University of Illinois. ORDVAC was completed the spring of
ILLIAC
Computer architecture where code and data share a common bus
construct their computers. Among these various computers, only ILLIAC and ORDVAC had compatible instruction sets. ARC2 (Birkbeck, University of London) officially
Von_Neumann_architecture
Digital circuit without clock cycles
were developed in early 1950s as part of bigger asynchronous systems (e.g. ORDVAC). Asynchronous circuits and theory surrounding is a part of several steps
Asynchronous_circuit
Early computer
Engineering at the University of Pennsylvania in the United States. Along with ORDVAC, it was a successor to the ENIAC. Unlike ENIAC, it was binary rather than
EDVAC
Computer architecture bit width
derivatives such as AVIDAC, BESK, ILLIAC I , JOHNNIAC, MANIAC I, ORACLE, ORDVAC, TIFRAC, and WEIZAC had 40-bit words. The History and Development of the
40-bit_computing
First electronic general-purpose digital computer
October 2, 1955, when it was retired in favor of the more efficient EDVAC and ORDVAC computers. A few months after ENIAC's unveiling in the summer of 1946, as
ENIAC
Defunct research facility of the United States Army
had already acquired the Ordnance Discrete Variable Automatic Computer (ORDVAC), which the lab had commissioned the University of Illinois to build. As
Ballistic_Research_Laboratory
Vacuum tube computer built in 1952 by the University of Illinois
1952. It was the second of two identical computers, the first of which was ORDVAC, also built at the University of Illinois. These two machines were the first
ILLIAC_I
Base-16 numeric representation
the lowercase letters u, v, w, x, y and z for the values 10 to 15. The ORDVAC and ILLIAC I (1952) computers (and some derived designs, e.g. BRLESC) used
Hexadecimal
British computer scientist (1927–2004)
user-oriented programming methods, and the influence of EDSAC on the ILLIAC, the ORDVAC, and the IBM 701. He also notes visits by Douglas Hartree, Nelson Blackman
David Wheeler (computer scientist)
David_Wheeler_(computer_scientist)
four early computers, 1962. From left to right: ENIAC board, EDVAC board, ORDVAC board, and BRLESC-I board, showing the trend toward miniaturization.
History_of_computing_hardware
American computer programmer and entrepreneur (born 1928)
Harvard students. In the summers, Shutt worked at Aberdeen programming the ORDVAC computer. Here, she met Richard Clippinger, who hired her at Raytheon. Together
Elsie_Shutt
First electronic computer to be built at the Institute for Advanced Study
MISTIC (Michigan State University) ORACLE (Oak Ridge National Laboratory) ORDVAC (Aberdeen Proving Ground) PERM (Munich) SARA (SAAB) SEAC (Washington, D
IAS_machine
American mathematician (1911–1999)
to build a computer based on von Neumann's plans. The computer, called ORDVAC, was completed in 1952 and delivered to the Aberdeen Proving Ground. A second
Abraham_H._Taub
American mathematician (1928–2023)
the Control Systems Lab and became one of the early programmers of the ORDVAC. He later worked at Bell Labs and the RAND Corporation before joining New
Martin_Davis_(mathematician)
Canadian computer scientist and mathematician
education at the University of Illinois and helped with the checkout of ORDVAC computer in the summer of 1951. Jim Mayberry, a close friend of Gillies
Donald_B._Gillies
Supercomputer built by the University of Illinois in 1962
Engineering library, although it would not be packaged as a single report. ORDVAC ILLIAC I ILLIAC III ILLIAC IV Brearley, H.C. (1965), "ILLIAC II – A short
ILLIAC_II
built by the University of Sydney, Australia, was based on the ILLIAC and ORDVAC computers developed at the University of Illinois. Like other early computers
SILLIAC
1940s–1950s British computer
user-oriented programming methods, and the influence of EDSAC on the ILLIAC, the ORDVAC, and the IBM 701. Wheeler also notes visits by Douglas Hartree, Nelson Blackman
EDSAC
British computer scientist (1913–2010)
discusses the EDSAC project, the influence of EDSAC on the ILLIAC, the ORDVAC, and the IBM 701 computers, as well as visits to Cambridge by Douglas Hartree
Maurice_Wilkes
First generation programmable computers
Remington Rand; it was a punched card calculator programmed by a plugboard. ORDVAC 1952 1 2.8k : 0 Built by the University of Illinois for the Ballistic Research
List_of_vacuum-tube_computers
problems. Even so, several asynchronous CPUs have been built, including the ORDVAC and the identical ILLIAC I (1951) the ILLIAC II (1962), then the fastest
History of general-purpose CPUs
History_of_general-purpose_CPUs
Parallel computer built in 1966
type used in ILLIAC III Printed circuits of the type used in ILLIAC III ORDVAC ILLIAC I ILLIAC II ILLIAC IV "Prof. John P. Hayes retires after half a century
ILLIAC_III
British computer scientist (1926–1975)
user-oriented programming methods, and the influence of EDSAC on the ILLIAC, the ORDVAC, and the IBM 701. Biographical Librarian, St. John's College, Cambridge
Stanley_Gill
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