List of vacuum tube computers

Vacuum tube computers, now termed first generation computers,[1] are programmable digital computers using vacuum tube logic circuitry. They were preceded by systems using electromechanical relays and followed by systems built from discrete transistors. Later entries in this list may have been built using transistors in addition to vacuum tubes.

EDSAC

Main article: Vacuum tube computer

This is a list of vacuum tube computers, arranged by date put into service:

ComputerDate UnitsNotes
Atanasoff–Berry Computer1942 1Not programmable, could solve a system of linear equations
Colossus1943 10First programmable (by switches and plug panels) special-purpose (cryptanalysis) electronic digital computer. Used to break the German Lorenz cipher. Working replica demonstrated daily at The National Museum of Computing, Bletchley Park.
ENIAC1945 1First large-scale general-purpose programmable electronic digital computer. Built by the University of Pennsylvania's Moore School of Electrical Engineering for the U.S. Army's Ballistic Research Laboratory. Originally programmed by wiring together components, by April 1948 it had been converted to a form of stored-program operation.
Manchester Baby1948 1First electronic stored-program computer, worked June 1948; prototype for the Mark 1. Working replica demonstrated daily in Manchester Museum of Science and Industry
Manchester Mark 11949 1Provided a computing service from April 1949. First index registers. Replaced in 1951 by Ferranti Mark 1.
EDSAC1949 1First ran on 6 May 1949, and provided a computing service for Cambridge University until 1958. Working replica being built at The National Museum of Computing, Bletchley Park.
BINAC1949 1First stored-program computer to be sold, but did not work for customer.
CSIRAC1949 1Oldest surviving complete first-generation electronic computer — unrestored and non-functional.
SEAC1950 1 First U.S. stored-program computer to become operational. Built by and for the U.S. National Bureau of Standards. Used solid-state diode circuits for its logic. Several computers were based on the SEAC design.
SWAC1950 1 Built for the U.S.'s National Bureau of Standards, it had 2,300 vacuum tubes. It had 256 words (each 37 bits) of memory, using Williams tubes
ERA Atlas1950 (Military version of Univac 1101) Used 2,700 vacuum tubes for its logic circuits
MADDIDA1950 6 Special-purpose digital computer for solving a system of differential equations. Forty-four integrators were implemented using a magnetic drum with six storage tracks. The interconnections of the integrators were specified by writing an appropriate pattern of bits onto one of the tracks.
Pilot ACE1950 1Based on a full-scale design by Alan Turing
Elliott 1521950 1 Naval fire control computer, real-time control system, fixed program
Harvard Mark III1951 1 It used 5,000 vacuum tubes and 1,500 crystal diodes
Ferranti Mark 11951 9First commercially available computer, based on Manchester Mark 1.
EDVAC1951 1 The successor to ENIAC, and also built by the University of Pennsylvania's Moore School of Electrical Engineering for the U.S. Army's Ballistic Research Laboratory. One of the first stored-program computers to be designed, but its entry into service was delayed. EDVAC's design influenced a number of other computers.
Harwell Dekatron Computer1951 1 Now officially the oldest original working computer in the world. Is frequently demonstrated at The National Museum of Computing, Bletchley Park.
Whirlwind1951 1 Parallel logic, approx 5,000 vacuum tubes. First use of core memory.
UNIVAC I1951 46Mass-produced. 46 were made.
LEO I1951 1 First computer for commercial applications. Built by J. Lyons and Co. restaurant and bakery chain. Based on EDSAC design.
UNIVAC 11011951 Designed by ERA, Used 2,700 vacuum tubes for its logic circuits
Hollerith Electronic Computer (HEC)1951 Initial design by Andrew Donald Booth, then engineered by British Tabulating Machine Company. HEC 1 can be seen at The National Museum of Computing, Bletchley Park.
IAS machine1951 1 Built at the Institute for Advanced Study (IAS), sometimes called the von Neumann machine, since design was described by John von Neumann (the Von Neumann architecture). 1,500 tubes. It was the basis of about 15 other computers.
MESM1951 1 Built near Kiev, used 6,000 vacuum tubes. First universally programmable computer in USSR. Designed basically near to Von Neumann architecture but had two separate banks of memory - one for programs and another for data
Remington Rand 4091952 ~1000Built by Remington Rand, it was a punched card calculator programmed by a plugboard
Harvard Mark IV1952 1 built by Harvard University under the supervision of Howard Aiken for the United States Air Force
G11952 Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[2][3][4]
ORDVAC1952 1 Built by the University of Illinois for the Ballistic Research Laboratory and was a twin of the ILLIAC I
ILLIAC I1952 1 Built by the University of Illinois in Urbana
MANIAC I1952 1 Built at Los Alamos Scientific Laboratory and based on the IAS computer
IBM 7011952 19Built by IBM, also known as the Defense Calculator, based on the IAS computer
BESM-11952 1 Built in the Soviet Union
Bull Gamma 31952 Made by Groupe Bull and contained almost 400 tubes.[5][6][7]
AVIDAC1953 1 Based on the IAS computer
FLAC1953 3 Design based on SEAC. Located at Patrick Air Force Base.
JOHNNIAC1953 1 Built by the RAND Corporation, based on the IAS computer
MIDAC1953 1Built at the University of Michigan, the first at a university in the Midwest
IBM 7021953 14Built by IBM for business computing
UNIVAC 11031953 Designed by Engineering Research Associates (ERA)
RAYDAC1953 1 Built by Raytheon for Naval Air Missile Test Center
Strela computer1953 7 Built in the Soviet Union
Datatron1954 Commercial computer built by ElectroData Corporation
IBM 6501954 ~2000The world's first mass-produced computer
IBM 7041954 123The first mass-produced computer with floating-point arithmetic hardware for scientific use
IBM 7051954 Mostly compatible with the IBM 702, for business use. There is one that is not in operating condition at Computermuseum München.
BESK1954 April 1 Sweden's first computer and was the fastest computer in the world for a brief time
IBM NORC1954 Dec 1 Built by IBM for the US Navy Bureau of Ordnance, it was the first supercomputer and the most powerful computer in the world for at least 2 years. 9,800 tubes in logic.
UNIVAC 11021954 3A variation of the UNIVAC 1101 built for the US Air Force
DYSEAC1954 1 Built by the U.S. National Bureau of Standards as an improved version of SEAC. Mounted in a trailer van, making it the first computer to be transportable.
WISC1954 1 Built by the University of Wisconsin–Madison
REAC 400 (C-400)[8]1955[9] In 1961 REAC installed for $60,000 at University of Minnesota.[10] General purpose electronic analog computer.[9]
CALDIC1955 1 Designed to be inexpensive and simple to use; it used decimal arithmetic
MOSAIC 1955 1 Second implementation of ACE (Automatic Computing Engine) architecture after Pilot ACE.
English Electric DEUCE1955 31Commercial version of Pilot ACE
Zuse Z221955 55An early commercial computer.
ERMETH[11][12]1955[13] Built by Eduard Stiefel, Heinz Rutishauser, Ambros Speiser at the ETH Zurich
HEC 4 (ICT 1200 series)1955 Built by Andrew Booth
WEIZAC1955 1Built by the Weizmann Institute of Science (Israel) under the guidance of Prof. G. Estrin. First computer designed in the Middle East.
G21955 Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[2][3][4]
Axel Wenner-Gren ALWAC III-E1955 Commercially constructed and installed (in 1957) at University of British Columbia and Oregon State University (then College)[14]
IBM 305 RAMAC1956 >1000The first commercial computer to use a moving-head hard-disk drive for secondary storage
PERM1956 1 Built in Munich
D11956 Built by Joachim Lehmann at the TU Dresden[15]
SMIL1956 1 Built in Sweden and based on the IAS computer
Bendix G-151956 >400A small computer for scientific and industrial purposes by the Bendix Corporation. It had a total of about 450 tubes (mostly dual triodes) and 300 germanium diodes.
TIFR Pilot Machine1956 TIFRAC (Tata Institute of Fundamental Research Automatic Calculator) was the first computer developed in India, at the Tata Institute of Fundamental Research in Mumbai.
LGP-301956 ~500Data-processing system made by Librascope; bit-serial drum machine with only 113 tubes, along with 1450 diodes[16]
UNIVAC 1103A1956 First computer to have hardware interrupts
FUJIC1956 1The first electronic computer in Japan, designed to perform calculations for lens design by Fuji
Ferranti Pegasus1956 38Vacuum tube computer with magnetostrictive delay line memory intended for office usage. Second surviving oldest computer in the world.[17]
SILLIAC1956 1Built at the University of Sydney, based on the ILLIAC and ORDVAC
RCA BIZMAC1956 6RCA's first commercial computer, it contained 25,000 tubes
Ural series1956–1964 Ural-1 to Ural-4.
BESM-2 1957 20+ general purpose computer in the BESM series
CIFA-1 1957 4 First computer built in Romania at Institutul de Fizică Atomică (Atomic Physics Institute)
DASK1957 1The first computer in Denmark; had an early implementation of ALGOL
UNIVAC 11041957 A 30-bit variation of the UNIVAC 1103
Ferranti Mercury1957 19An early commercial vacuum tube computer by Ferranti, with core memory and hardware floating point capability
IBM 6101957 180A small computer designed to be used by one person with limited experience
FACIT EDB 21957 9
LEO II 1957 11 Commercial version of LEO I prototype.
MANIAC II1957 1 Built by the University of California and the Los Alamos Scientific Laboratory
MISTIC1957 1A Michigan State University based on the ILLIAC I
MUSASINO-11957 1A Japanese computer based on the ILLIAC I
MMIF1957 MMIF or Machine mathématique IRSIA-FNRS, devised by a team funded by the Belgian public institutions IRSIA and FNRS, and build at the Bell Telephone Mfg Co in Antwerp, from 1952. In use 1957–1958 in Antwerp, 1958–1959 in Brussels.[18]
Sandia RAYPAC (Ray Path Analog Computer)c. 1957 Sandia's Blast Prediction Unit used for Operation Teapot[19]
EDSAC 21958 1First computer to have a microprogrammed control unit and a bit slice hardware architecture.
IBM 7091958 An improved version of the IBM 704
UNIVAC II1958 An improved, fully compatible version of the UNIVAC I
UNIVAC 11051958 3A follow-up to the UNIVAC 1103 scientific computer
AN/FSQ-71958 Largest vacuum tube computer ever built. 52 were built for Project SAGE.
ZEBRA1958 55Designed in Holland and built by Britain's Standard Telephones and Cables[20]
Ferranti Perseus1959 2[21][22][23]
Rice Institute Computer1959 1Operational 1959-1971, 54-bit tagged architecture
Cyclone1959 1 IAS-type computer at Iowa State College
DERA1959 1Built by Alwin Walther at the Technical University of Darmstadt; first operative in 1957, development completed in 1959
D2 1959 Built by Joachim Lehmann at the TU Dresden[24]
TIFRAC1960 The first computer developed in India
CER-101960 The first computer developed in Yugoslavia, it also used some transistors
Philips PASCAL / STEVIN1960 Philips Automatic Sequence Calculator; 1200 valves, 10000 transistors, and 15000 germanium diodes. PASCAL and STEVIN (Dutch: Snel Tel En Vermenigvuldig INstrument, lit. 'Fast Count and Multiply Instrument') are identical, except input-output equipment. Both were used internally.[25][26][27]
The Wegematic 10001960 Improved version of the ALWAC III-E[28]
Odra 10011960 First computer built by Elwro, Wroclaw, Poland
Minsk-11960 Built in Minsk
G31961 Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[2]
Sumlock ANITA calculator1961 <10,000/yearDesktop calculator
UMC-11962 Developed in Poland, it used the unusual negabinary number system internally
BRLESC1962 11,727 tubes and 853 transistors
OSAGE1963 1Close copy of the Rice Institute Computer built at the University of Oklahoma

See also

References
  1. Hsu, John Y. (December 21, 2017). Computer Architecture: Software Aspects, Coding, and Hardware. CRC Press. p. 4. ISBN 142004110X. Retrieved December 29, 2017.
  2. "The G1, G2, and G3 of Billing in Göttingen". www.quantum-chemistry-history.com.
  3. Research, United States Office of Naval (1953). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. pp. 37–38.
  5. technikum29-Team. "A first generation tube calculator: BULL GAMMA 3 - technikum29". www.technikum29.de. Retrieved November 5, 2017.
  6. Tatnall, Arthur; Blyth, Tilly; Johnson, Roger (December 6, 2013). Making the History of Computing Relevant: IFIP WG 9.7 International Conference, HC 2013, London, UK, June 17-18, 2013, Revised Selected Papers. Springer. p. 124. ISBN 9783642416507.
  7. Research, United States Office of Naval (1953). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. p. 39.
  8. "COMPUTER COLLECTOR - Reeves REAC 400 Analog Computer (1957)". www.computercollector.com. Retrieved June 1, 2018.
  9. "REL-REEVES, INC., successor to Dynamics Corporation of America v. The UNITED STATES v. DIGITAL RESOURCES CORPORATION, Third-Party Defendant. -- Rel-Reeves, Inc. v. United States, 534 F.2d 274, 274 (1976)". www.ravellaw.com. ¶19, ¶194-195, ¶217. Retrieved June 1, 2018.
  10. "UDEC I II III : Unitized Digital Electronic Calculator Models I II and III". Ed-thelen.org. Retrieved April 26, 2017.
  11. Trueb, Lucien F. (2015). Astonishing the Wild Pigs: Highlights of Technology. ATHENA-Verlag. pp. 141–142. ISBN 9783898967662.
  12. "10 brilliant things to discover at the new-look Museum of Communication". Time Out Switzerland. 9. Discover the Datacenter.
  13. "Computer Science Research at ETH". www.inf.ethz.ch.
  14. Törn, Aimo (December 1, 2000). "Wegematic 1000". Early History of Computing in Turku, 1959-1964. Åbo Akademi (University). Retrieved August 11, 2016.
  15. Ludwig, Manfred (2007). "Das Leben und Wirken von Prof. N. J. Lehmann" [The life and work of Prof. N.J. Lehmann]. www.math.tu-dresden.de. pp. 7–11.CS1 maint: ref=harv (link)
  16. LGP 30, technikum 29: Living Museum
  17. Pegasus at the V&A, Computer Conservation Society, June 2016, retrieved August 29, 2016
  18. d’Udekem-Gevers, Marie (2011). La Machine mathématique IRSIA-FNRS (1946-1962) (in French). Brussels: Académie royale de Belgique. ISBN 978-2-8031-0280-8.
  19. Operation Teapot: Report of the Test Manager (Report). p. 68.
  20. "Computer History Museum - Standard Telephones and Cables Limted, London - Stantec Zebra Electronic Digital Computer". Computerhistory.org. Retrieved April 24, 2017.
  21. Lavington, Simon Hugh (1980). Early British Computers: The Story of Vintage Computers and the People who Built Them. Manchester University Press. p. 78. ISBN 9780719008108.
  22. Information, Reed Business (March 5, 1959). "To compute Swedish premiums". New Scientist. Reed Business Information. p. 517.
  23. . 195904.pdf. "REFERENCE INFORMATION: A Survey of British Digital Computers (Part 2) - Perseus". Computers and Automation. 8 (4): 34. April 1959. Archived from the original on August 1, 2018. Retrieved June 29, 2018.CS1 maint: others (link)
  24. Ludwig 2007, p. 11-15.
  26. Beer, Huub de (February 26, 2008). "Heer de Beer.org—Computers en Philips" [Heer de Beer.org—Computers and Philips]. heerdebeer.org (in Dutch). Google translation. Amsterdam. Retrieved July 13, 2018.
  28. . 196004.pdf. "REFERENCE INFORMATION: Survey of European Computers, Part 3 (Concluding Part)". Computers and Automation. 9 (4): 26. April 1960. Archived from the original on August 1, 2018. Retrieved June 29, 2018.CS1 maint: others (link)
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