View source for CER-22

{{Short description|Transistor based computer}}
[[File:CER-22, ERC BB.jpg|thumb|250px|CER-22 at the ERC BeoBank]]
[[File:CER-22(inside).jpg|thumb|150px|CER-22 (inside) at the BeoBank]]
[[File:CER-22 in B.B.ERC, dh.jpg|thumb|250px|CER-22 computer in the work]]
[[File:CER-22,blok-shema.jpg|right|250px|CER-22 system, drawings; see ref.2]]

[[CER Computers|CER]] ({{langx|sr|Цифарски Електронски Рачунар}} – ''Digital Electronic Computer'') model 22 is a [[transistor]] based [[computer]] developed by [[Mihajlo Pupin Institute]] ([[Serbia]]) in 1967-1968. It was originally intended for [[bank]]ing applications and was used for data processing and management planning in banks, trade and utility companies in Belgrade. Three CER-22 computers were purchased by Beobanka, [[Srbijagas|Jugopetrol]] and BVK–Belgrade companies. (For more details see: Ref.# 1, #2, #3, and #4).

The principal designers and chiefs of the project teams were:
 
*Dušan Hristović, Svetomir Ojdanić, Veselin Potić, Radivoje Ilić et al. for Beobanka;
*Dr Sc. Miroslav Jocković, Branimir Leposavic, Michael Savikin, Ljubivoje Marković et al., for Jugopetrol co.;
*Vladislav Paunović, Miloš Marjanović, Petar Vrbavac, Dragiša Tinković et al. for BVK-Belgrade.

==Technical characteristics of the CER-22==
* Technology: IC (MSI), transistor and diode logic circuits (See also: Ref. #2, #5, #6).
* Printed circuits boards with the ribbon connectors;
* CPU performance: the 16-cycle instructions (10 microseconds);
* Magnetic core memory: 32 KB capacity (memory cycle time of 2 microseconds);
* Disk storage CDC-854 (max 8 disk units);
* Card reader and puncher:  300 cards/min and 150 cards/min;
* Paper tape reader and puncher, type "Facit": 1000 characters/s and 150 characters/s;
* Parallel Line Printer, type DP MZ-4: 128 characters/line, 600 lines/min.

==See also==
* [[CER Computers]]
* [[CER-10]]
* [[Mihajlo Pupin Institute]], [http://www.pupin.rs]
* [[History of computer hardware in the SFRY]]

==References==
# Electronic Computer System CER-22 (Dušan Hristović, Ljubivoje Marković, Slavoljub Rajić), Proc. of IV Symp. Informatika-68, pp.&nbsp;271–278, Ljubljana-Bled, October 1968; In Serbian.
# Computer CER-22 (Dušan Hristović), HPEEA journal, No 10, pp.&nbsp;5–12, Belgrade October 1969; In Serbian.
# Digital electronic computers CER (M. Momčilović, D. Hristović, et al.), Proc. of the seminar Mehanizacija i AOP u preduzećima, pp.&nbsp;38–58, Nova Varoš,  May 22, 1969; In Serbian.
# “TIM Computers” (D. Milićević, D. Hristović Ed.), pp.&nbsp;165–166,  Naucna knjiga, Belgrade 1990;
# Review and Analysis of the computers CER (Vladislav Paunović, Dušan Hristović), Proc. of the 44. Conf. ETRAN-2000, vol.3, pp.&nbsp;79–82, Soko Banja,  June 26, 2000. In Serbian.
# Computing technology in Serbia, by Dusan Hristovic, PHLOGISTON journal, No 18/19, pp.&nbsp;89–105, Museum MNT-SANU, Belgrade 2010/2011. In Serbian.

==External links==
* [http://www.pupin.rs/istorijat/1967: CER-22]{{dl|date=December 2018}} - manufacturer's web-site.

{{Serbian computers}}

[[Category:CER computers]]
[[Category:Transistorized computers]]
[[Category:Mihajlo Pupin Institute]]

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