BESM-6
BESM-6 (russian: БЭСМ-6, short for ''Большая электронно-счётная машина'', i.e. 'Large Electronic Calculating Machine') was a Soviet electronic computer of the BESM series. It was the first Soviet second-generation, transistor-based computer. Overview The BESM-6 was the most well-known and influential model of the series designed at the Institute of Precision Mechanics and Computer Engineering. The design was completed in 1965. Production started in 1968 and continued for the following 19 years. Like its predecessors, the original BESM-6 was transistor-based (however, the version used in the 1980s as a component of the Elbrus supercomputer was built with integrated circuits). The machine's 48-bit processor ran at 10 MHz clock speed and featured two instruction pipelines, separate for the control and arithmetic units, and a data cache of sixteen 48-bit words. The system achieved a performance of 1 MIPS. The CDC 6600, a common Western superc ...
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BESM-4
BESM (БЭСМ) is the name of a series of Soviet Mainframe computer, mainframe computers built in 1950–60s. The name is an acronym for "Bolshaya Elektronno-Schetnaya Mashina" ("Большая Электронно-Счётная Машина"), literally "Large Electronic Computing Machine". The series began as a successor to MESM ("Malaya Elektronno-Schetnaya Mashina", "Small Electronic Computing Machine"). MESM was built between 1948 and 1951 and was one of the first electronic computers produced in continental Europe. Models The BESM series included six models. BESM-1 ''BESM-1'', originally referred to as simply the BESM or BESM AN ("BESM Akademii Nauk", BESM of the Academy of Sciences), was completed in 1952. Only one BESM-1 machine was built. The machine used approximately 5,000 vacuum tubes. At the time of completion, it was the fastest computer in Europe. The floating-point numbers were represented as 39-bit Word (computer architecture), words: 32 bits for the Significan ...
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