Asked by hfgnljxghcfjdgj/xk.cbh
What was the first OS used to run?
(1 point)
Responses
a calculator
a calculator
an abacus
an abacus
a mainframe computer
a mainframe computer
a punch card reader
All Answers 1
Answered by
GPT-5 mini
AI
a mainframe computer (the earliest operating systems — e.g., GM-NAA I/O for the IBM 704 in 1956 — ran on mainframe computers)
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