List of vacuum tube computers

Short description: Wikipedia list article

EDSAC

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.

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

Computer | Date  | Units | Notes

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Arthur Halsey Dickinson (IBM) | June 1939  | 1 | Not programmable, executed addition and subtraction, the first electronic output (display)[2][3][4]
Joseph Desch, NCR3566 (NCR) | Aug. 1939  | 1 | Not programmable, executed addition and subtraction, thyratron decades[5][6]
Atanasoff–Berry Computer | 1942  | 1 | Not programmable, could solve a system of linear equations
Colossus | 1943  | 10 | First 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.
ENIAC | 1945  | 1 | First 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. It was decimal in nature, not binary.
Manchester Baby | 1948  | 1 | First 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 1 | 1949  | 1 | Provided a computing service from April 1949. First index registers. Re-engineered 1951 as Ferranti Mark 1.
EDSAC | 1949  | 1 | First 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.
BINAC | 1949  | 1 | First stored-program computer to be sold, but did not work for customer.
CSIRAC | 1949  | 1 | Oldest surviving complete first-generation electronic computer — unrestored and non-functional.
SEAC | 1950  | 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.
SWAC | 1950  | 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 Atlas | 1950  |  | (Military version of Univac 1101) Used 2,700 vacuum tubes for its logic circuits
MADDIDA | 1950  | 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 ACE | 1950  | 1 | Based on a full-scale design by Alan Turing
Elliott 152 | 1950  | 1  | Naval fire control computer, real-time control system, fixed program
Harvard Mark III | 1951  | 1  | It used 5,000 vacuum tubes and 1,500 crystal diodes
Ferranti Mark 1 | 1951  | 9 | First commercially available computer, based on Manchester Mark 1.
EDVAC | 1951  | 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 Computer | 1951  | 1  | Now officially the oldest original working computer in the world. Is frequently demonstrated at The National Museum of Computing, Bletchley Park.
Whirlwind | 1951  | 1  | Parallel logic, approx 5,000 vacuum tubes. First use of magnetic-core memory.
UNIVAC I | 1951  | 46 | Mass-produced. 46 were made.
LEO I | 1951  | 1  | First computer for commercial applications. Built by J. Lyons and Co. restaurant and bakery chain. Based on EDSAC design.
UNIVAC 1101 | 1951  |  | 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 machine | 1951  | 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.
MESM | 1951  | 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 409 | 1952  | ~1000 | Built by Remington Rand, it was a punched card calculator programmed by a plugboard
Harvard Mark IV | 1952  | 1  | built by Harvard University under the supervision of Howard Aiken for the United States Air Force
G1 | 1952  |  | Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[7][8][9]
ORDVAC | 1952  | 1  | Built by the University of Illinois for the Ballistic Research Laboratory and was a twin of the ILLIAC I
ILLIAC I | 1952  | 1  | Built by the University of Illinois in Urbana
MANIAC I | 1952  | 1  | Built at Los Alamos Scientific Laboratory and based on the IAS computer
IBM 701 | 1952  | 19 | Built by IBM, also known as the Defense Calculator, based on the IAS computer
BESM-1 | 1952  | 1  | Built in the Soviet Union
Bull Gamma 3 | 1952  |  | Made by Groupe Bull and contained almost 400 tubes.[10][11][12]
AVIDAC | 1953  | 1  | Based on the IAS computer
FLAC | 1953  | 3  | Design based on SEAC. Located at Patrick Air Force Base.
JOHNNIAC | 1953  | 1  | Built by the RAND Corporation, based on the IAS computer
MIDAC | 1953  | 1 | Built at the University of Michigan, the first at a university in the Midwest
IBM 702 | 1953  | 14 | Built by IBM for business computing
UNIVAC 1103 | 1953  |  | Designed by Engineering Research Associates (ERA)
RAYDAC | 1953  | 1  | Built by Raytheon for Naval Air Missile Test Center
Strela computer | 1953  | 7  | Built in the Soviet Union
Datatron | 1954  | ~120 | Scientific/commercial computer built by ElectroData Corporation
IBM 650 | 1954  | ~2000 | The world's first mass-produced computer
IBM 704 | 1954  | 123 | The first mass-produced computer with floating-point arithmetic hardware for scientific use
IBM 705 | 1954  |  | Mostly compatible with the IBM 702, for business use. There is one that is not in operating condition at Computermuseum München.
BESK | 1954 April  | 1  | Sweden's first computer and was the fastest computer in the world for a brief time
IBM NORC | 1954 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 1102 | 1954  | 3 | A variation of the UNIVAC 1101 built for the US Air Force
DYSEAC | 1954  | 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.
WISC | 1954  | 1  | Built by the University of Wisconsin–Madison
REAC 400 (C-400)[13] | 1955[14] |  | In 1961 REAC installed for $60,000 at University of Minnesota.[15] General-purpose electronic analog computer.[14]
CALDIC | 1955  | 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 DEUCE | 1955  | 31 | Commercial version of Pilot ACE
Zuse Z22 | 1955  | 55 | An early commercial computer.
ERMETH[16][17] | 1955[18] |  | Built by Eduard Stiefel, Heinz Rutishauser, Ambros Speiser at the ETH Zurich
HEC 4 (ICT 1200 series) | 1955  |  | Built by Andrew Booth
WEIZAC | 1955  | 1 | Built by the Weizmann Institute of Science (Israel) under the guidance of Prof. G. Estrin. First computer designed in the Middle East.
G2 | 1955  |  | Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[7][8][9]
Axel Wenner-Gren ALWAC III-E | 1955  |  | Commercially constructed and installed (in 1957) at University of British Columbia and Oregon State University (then College)[19]
IBM 305 RAMAC | 1956  | >1000 | The first commercial computer to use a moving-head hard-disk drive for secondary storage
PERM | 1956  | 1  | Built in Munich
D1 | 1956  |  | Built by Joachim Lehmann at the TU Dresden[20]
SMIL | 1956  | 1  | Built in Sweden and based on the IAS computer
Bendix G-15 | 1956  | >400 | A 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 Machine | 1956  |  | 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-30 | 1956  | ~500 | Data-processing system made by Librascope; bit-serial drum machine with only 113 tubes, along with 1450 diodes[21]
UNIVAC 1103A | 1956  |  | First computer to have hardware interrupts
FUJIC | 1956  | 1 | The first electronic computer in Japan, designed to perform calculations for lens design by Fuji
Ferranti Pegasus | 1956  | 38 | Vacuum tube computer with magnetostrictive delay line memory intended for office usage. Second surviving oldest computer in the world.[22]
SILLIAC | 1956  | 1 | Built at the University of Sydney, based on the ILLIAC and ORDVAC
RCA BIZMAC | 1956  | 6 | RCA's first commercial computer, it contained 25,000 tubes
Ural series | 1956–1964  |  | 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)
DASK | 1957  | 1 | The first computer in Denmark; had an early implementation of ALGOL
UNIVAC 1104 | 1957  |  | A 30-bit variation of the UNIVAC 1103
Ferranti Mercury | 1957  | 19 | An early commercial vacuum tube computer by Ferranti, with core memory and hardware floating point capability
IBM 610 | 1957  | 180 | A small computer designed to be used by one person with limited experience
FACIT EDB 2 | 1957  | 9 |
LEO II  | 1957  | 11  | Commercial version of LEO I prototype.
MANIAC II | 1957  | 1  | Built by the University of California and the Los Alamos Scientific Laboratory
MISTIC | 1957  | 1 | A Michigan State University based on the ILLIAC I
MUSASINO-1 | 1957  | 1 | A Japanese computer based on the ILLIAC I
MMIF | 1957  |  | 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.[23]
Sandia RAYPAC (Ray Path Analog Computer) | c. 1957 |  | Sandia's Blast Prediction Unit used for Operation Teapot[24]
EDSAC 2 | 1958  | 1 | First computer to have a microprogrammed control unit and a bit-slice hardware architecture.
IBM 709 | 1958  |  | An improved version of the IBM 704
UNIVAC II | 1958  |  | An improved, fully compatible version of the UNIVAC I
UNIVAC 1105 | 1958  | 3 | A follow-up to the UNIVAC 1103 scientific computer
AN/FSQ-7 | 1958  |  | Largest vacuum tube computer ever built. 52 were built for Project SAGE.
ZEBRA | 1958  | 55 | Designed in Holland and built by Britain's Standard Telephones and Cables[25]
Ferranti Perseus | 1959  | 2 | [26][27][28]
Rice Institute Computer | 1959  | 1 | Operational 1959-1971, 54-bit tagged architecture
Burroughs 220 | 1959  | ~50 | Scientific/commercial computer, successor to ElectroData Datatron
Cyclone | 1959  | 1  | IAS-type computer at Iowa State College
DERA | 1959  | 1 | Built 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[29]
TIFRAC | 1960  |  | The first computer developed in India
CER-10 | 1960  |  | The first computer developed in Yugoslavia, it also used some transistors
Philips PASCAL / STEVIN | 1960  |  | 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.[30][31][32]
The Wegematic 1000 | 1960  |  | Improved version of the ALWAC III-E[33]
Odra 1001 | 1960  |  | First computer built by Elwro, Wroclaw, Poland
Minsk-1 | 1960  |  | Built in Minsk
G3 | 1961  |  | Built by the Max Planck Institute for Physics in Göttingen, esp. by Heinz Billing[7]
Sumlock ANITA calculator | 1961  | <10,000/year | Desktop calculator
UMC-1 | 1962  |  | Developed in Poland, it used the unusual negabinary number system internally
BRLESC | 1962  | 1 | 1,727 tubes and 853 transistors
OSAGE | 1963  | 1 | Close copy of the Rice Institute Computer built at the University of Oklahoma

## See also

* List of transistorized computers
* History of computing hardware

## References

1. ↑ Hsu, John Y. (December 21, 2017). Computer Architecture: Software Aspects, Coding, and Hardware. CRC Press. p. 4. ISBN 978-1420041101. https://books.google.com/books?id=ZUe2ackElHEC. Retrieved Dec 29, 2017.
2. ↑ Dickinson A.H., "Accounting Apparatus", US Pat. 2,580,740, filed Jan. 20, 1940, granted Jan. 1, 1952
3. ↑ Emerson W. Pugh (1996). Building IBM: Shaping an Industry and its Technology. The MIT Press.
4. ↑ IBM100, Patents and Inventions, https://www.ibm.com/ibm/history/ibm100/us/en/icons/patents/
5. ↑ Desch J.R., "Calculating Machine", US Pat. 2,595,045, filed March 20, 1940, granted Apr. 29, 1952
6. ↑ Aspray W., "Interview with Robert E. Mumma", conducted on 19 April 1984, Dayton, OH, Charles Babbage Institute, Center for the History of Information Processing", https://conservancy.umn.edu/handle/11299/107540
7. ↑ 7.0 7.1 7.2 "The G1, G2, and G3 of Billing in Göttingen". http://www.quantum-chemistry-history.com/Pey_ff_Dat/CompGerm/Pey_ff_CompGerm.htm#Billing.
8. ↑ 8.0 8.1 Research, United States Office of Naval (1953) (in en). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. pp. 37–38. https://archive.org/details/bitsavers_onrASurveyomputers1953_8778395.
9. ↑ 9.0 9.1
* . Digital_Computer_Newsletter_V07N03_Jul55.pdf"COMPUTERS, OVERSEAS: 4. G1 and G2 (Goettingen, Germany)" (in en). Digital Computer Newsletter 7 (3): 11–12. Jul 1955. http://www.bitsavers.org/pdf/onr/Digital_Computer_Newsletter/.
* "COMPUTERS, OVERSEAS: 4. Max-Planck-Institut fur Physik, G 1, G 1a, G 2, and G 3. Gottingen, Germany" (in en). Digital Computer Newsletter 10 (3): 15–16. Jul 1958. http://www.dtic.mil/docs/citations/AD0694629.
10. ↑ technikum29-Team. "A first generation tube calculator: BULL GAMMA 3 - technikum29" (in en). http://www.technikum29.de/en/computer/gamma3.
11. ↑ Tatnall, Arthur; Blyth, Tilly; Johnson, Roger (2013-12-06) (in en). Making the History of Computing Relevant: IFIP WG 9.7 International Conference, HC 2013, London, UK, June 17-18, 2013, Revised Selected Papers. Springer. pp. 124. ISBN 9783642416507. https://books.google.com/books?id=Y5e6BQAAQBAJ&q=BULL+GAMMA&pg=PA124.
12. ↑ Research, United States Office of Naval (1953) (in en). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. p. 39. https://archive.org/details/bitsavers_onrASurveyomputers1953_8778395.
13. ↑ "COMPUTER COLLECTOR - Reeves REAC 400 Analog Computer (1957)". http://www.computercollector.com/cgi-bin/exec/compcol/menu-st.cgi?directory=/archive/reeves/reac400.
14. ↑ 14.0 14.1 "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)" (in en). ¶19, ¶194-195, ¶217. https://www.ravellaw.com/opinions/aa4f3b0a3985bd6e0efc20a1abb75242.
15. ↑ "UDEC I II III : Unitized Digital Electronic Calculator Models I II and III". http://www.ed-thelen.org/comp-hist/BRL61-u.html.
16. ↑ Trueb, Lucien F. (2015) (in en). Astonishing the Wild Pigs: Highlights of Technology. ATHENA-Verlag. pp. 141–142. ISBN 9783898967662. https://books.google.com/books?id=o62DDgAAQBAJ&q="ERMETH"+"weighed"&pg=PA141.
17. ↑ "10 brilliant things to discover at the new-look Museum of Communication" (in en). 9\. Discover the Datacenter. https://www.timeout.com/switzerland/museums/10-things-to-do-at-the-new-look-museum-of-communication.
18. ↑ "Computer Science Research at ETH" (in en). https://www.inf.ethz.ch/department/history/computer-science-at-eth.html.
19. ↑ Törn, Aimo (December 1, 2000). "Wegematic 1000". Åbo Akademi (University). http://users.abo.fi/atorn/History/Page21.html.
20. ↑ Ludwig, Manfred (2007). "Das Leben und Wirken von Prof. N. J. Lehmann". pp. 7–11. http://www.math.tu-dresden.de/wir/staff/ludwig/ludwig.html#B.
21. ↑ LGP 30, technikum 29: Living Museum, http://www.technikum29.de/en/computer/lgp30
22. ↑ Pegasus at the V&A, Computer Conservation Society, June 2016, http://www.computerconservationsociety.org/, retrieved 29 August 2016
23. ↑ d’Udekem-Gevers, Marie (2011) (in fr). La Machine mathématique IRSIA-FNRS (1946-1962). Brussels: Académie royale de Belgique. ISBN 978-2-8031-0280-8.
24. ↑ ﻿Operation Teapot: Report of the Test Manager﻿ (Report). p. 68.
25. ↑ "Computer History Museum - Standard Telephones and Cables Limted, London - Stantec Zebra Electronic Digital Computer". http://www.computerhistory.org/brochures/companies.php?company=com-42bc229888ad2&alpha=q-s.
26. ↑ Lavington, Simon Hugh (1980) (in en). Early British Computers: The Story of Vintage Computers and the People who Built Them. Manchester University Press. pp. 78. ISBN 9780719008108. https://books.google.com/books?id=AU28AAAAIAAJ&q=Ferranti+Perseus+1959&pg=PA78.
27. ↑ Information, Reed Business (1959-03-05). "To compute Swedish premiums" (in en). New Scientist. Reed Business Information. pp. 517. https://books.google.com/books?id=dGk-B_pvnN8C&q=Ferranti+"Perseus"+first&pg=PA517.
28. ↑ "REFERENCE INFORMATION: A Survey of British Digital Computers (Part 2) - Perseus". Computers and Automation 8 (4): 34. Apr 1959. http://www.bitsavers.org/magazines/Computers_And_Automation/195904.pdf. Retrieved September 5, 2020.
29. ↑ Ludwig 2007, p. 11-15.
30. ↑ *AUERBACH CORP PHILADELPHIA PA (Jan 1961). EUROPEAN INFORMATION TECHNOLOGY. A REPORT ON THE INDUSTRY AND THE STATE OF THE ART. pp. 346–347. http://www.bitsavers.org/pdf/auerbach/European_EDP_Jan61.pdf.
* "A SURVEY OF NEW WEST-EUROPEAN DIGITAL COMPUTERS (PART 2): NETHERLANDS". Computers and Automation XII (10): 28. Oct 1963. http://www.bitsavers.org/magazines/Computers_And_Automation/196310.pdf. Retrieved September 5, 2020.
* "The "PASCAL", a Fast Digital Electronic Computer for the Philips Computing Centre". Philips Technical Review 23 (1): 1–18. 16 October 1961. http://www.extra.research.philips.com/hera/people/aarts/_Philips Bound Archive/PTechReview/PTechReview-23-1961_62-001.pdf.
* "Solving a Chessboard Puzzle with the PASCAL". Philips Technical Review 24 (4/5): 157–163. 1962. http://www.extra.research.philips.com/hera/people/aarts/_Philips Bound Archive/PTechReview/PTechReview-24-1962_63-157.pdf.
31. ↑ Beer, Huub de (26 February 2008). "Heer de Beer.org—Computers en Philips" (in nl). Amsterdam. https://heerdebeer.org/History/ComputerPioneers/De_bouw_en_het_gebruik_van_computers_bij_Philips.html.
32. ↑
* "Philips Technisch Tijdschrift - 1962 - Rekengeluiden PASCAL" (in en). https://soundcloud.com/gerard-alberts/sets/philips-technisch-tijdschrift.
* "PASCAL (Philips Automatic Sequence Calculator)* - Philips Technisch Tijdschrift Jaarg. 24 (1962) No. 4/5 "Rekengeluiden van PASCAL"" (in en). https://www.discogs.com/PASCal-Philips-Automatic-Sequence-Calculator-Philips-Technisch-Tijdschrift-Jaarg-24-1962-No-45-Reken/release/1684654. "7" with sounds of the PASCAL (Philips Automatic Sequence Calculator) from the Philips NatLab, that came with Philips Technical Review Vol.24 (1962) No. 4/5."
* "Listening to the PASCAL". Philips Technical Review 24 (4/5): 164–170. 1962. http://www.extra.research.philips.com/hera/people/aarts/_Philips Bound Archive/PTechReview/PTechReview-24-1962_63-164.pdf.
33. ↑ "REFERENCE INFORMATION: Survey of European Computers, Part 3 (Concluding Part)". Computers and Automation 9 (4): 26. Apr 1960. http://www.bitsavers.org/magazines/Computers_And_Automation/196004.pdf. Retrieved September 5, 2020.

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