Вопрос № 605405 - Английский язык

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The first generation of computers, which used vacuum tubes, came out in 1950. These computers could perform thousands of calculations per second. About 1960, the second generation of computers was developed and these could perform work ten times faster than their predecessors. The reason for this extra speed was the use of transistors instead of vacuum tubes. Second-generation computers were smaller, faster. One of the best of these second-generation computers is the Soviet BESM-6 (big electronic counting machine).
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The first generation of computers came out ______________________.
Варианты ответов
  • in 20 century
  • in 1950
  • about 1960
  • in 1960
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Вопрос задал(а): Анонимный пользователь, 12 Ноябрь 2020 в 20:12
На вопрос ответил(а): Анастасия Степанова, 12 Ноябрь 2020 в 20:12