CER-203 is a central unit of early digital computer developed by
Mihajlo Pupin Institute
Mihajlo Pupin Institute ( sr, Институт Михајло Пупин, Institut Mihajlo Pupin) is an institute based in Belgrade, Serbia. It is named after Mihajlo Idvorski Pupin and is part of the University of Belgrade.
It is notable for ma ...
(
Serbia) in 1971. It contained both
central processing unit and
primary memory.
Specifications
Central Processing Unit:
* Number of instructions: 32
* Performance:
** one 16-cycle instruction: 20
μs
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available.
A microsecond is equal to 1000 ...
** one single cycle instruction: 5
μs
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available.
A microsecond is equal to 1000 ...
** addition and/or subtraction of two 15-digit numbers: 20
μs
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available.
A microsecond is equal to 1000 ...
Primary memory:
* Capacity: 8
kiloword
In computing, a word is the natural unit of data used by a particular processor design. A word is a fixed-sized datum handled as a unit by the instruction set or the hardware of the processor. The number of bits or digits in a word (the ''word s ...
s
* Speed (cycle time): 1
μs
A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available.
A microsecond is equal to 1000 ...
* Complete, autonomous memory error checking
* Parity control
See also
*
CER-203
CER ( sr, Цифарски Електронски Рачунар – ''Digital Electronic Computer'') model 203 is an early digital computer developed by Mihajlo Pupin Institute ( Serbia) in 1971. It was designed to process data of medium-sized ...
computer
*
CER Computers
CER ( sh-Latn, Cifarski Elektronski Računar, lit=Digital Electronic Computer) was a series of early computers (based on vacuum tubes and transistors) developed by Mihajlo Pupin Institute in Yugoslavia in the 1960s and 1970s.
Models:
* CER-10 - 1 ...
*
Mihajlo Pupin Institute
Mihajlo Pupin Institute ( sr, Институт Михајло Пупин, Institut Mihajlo Pupin) is an institute based in Belgrade, Serbia. It is named after Mihajlo Idvorski Pupin and is part of the University of Belgrade.
It is notable for ma ...
*
History of computer hardware in the SFRY The Socialist Federal Republic of Yugoslavia (SFRY) was a socialist country that existed in the second half of the 20th century. Being socialist meant that strict technology import rules and regulations shaped the development of computer history in ...
Early computers
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