Bol'shaya (or Bystrodejstvuyushchaya) Ehlektronno-Schetnaya Mashina -
Big (or High-speed) Electronic Calculating Machine
A
soviet 9
MHz mainframe, designed in 1965 at the
ITMiVT. Reputedly the last indigenous
Russian computer that performed on a par with its
Western counterpart, the
Control Data supercomputer. More than 350 BESM-6s were
built. The last of them were taken out of service in the early 1990s.