🛠️ Invention or technique

MESM, the Soviet Union's first electronic computer

MESM, primer ordenador electrónico de la URSS

Date
1950-1951 · confidence high
Place
Feofania, Kyiv, Ukraine
Credited to
Sergey Lebedev and the Kyiv Institute of Electrical Engineering
Field
Knowledge & symbols

What it is

A stored-program computer with about six thousand vacuum tubes, installed in a former monastery building at Feofania near Kyiv. It performed calculations for rockets and nuclear energy. It was the first universal programmable electronic machine in the Soviet Union.

The first tests were in November 1950 and the commissioning in December 1951. It is sometimes presented as the first computer in continental Europe, but it was preceded by Zuse's Z4 (electromechanical) and the Swedish BARK.

What it led to

  • the BESM in Moscow and the Soviet computer series
  • the Ukrainian computer-science school of Glushkov
  • scientific computing in the Soviet space programme
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Sources✓ verified 2026-10-09