Which of the following statements about computing in the 1940s and 1950s is false?

a) The earliest digital computers of the 1940s and 1950s included operating systems.
b) Programmers often entered programs in machine language one bit at time using mechanical switches.
c) Machine-language programs could be entered using punched cards.
d) all of the above


d) all of the above

Computer Science & Information Technology

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