Question

First generation computer systems used ________________.

• A. Transistors
• B. Vacuum Tubes
• C. Both (a) and (b)
• D. None of the above

Answer 1

The correct option is B Vacuum Tubes

The period of first generation was from 1946-1959. The computers of first generation used vacuum tubes as the basic components for memory and circuitry for CPU.

In this generation, mainly batch processing operating system was used.

Punch cards, paper tape, and magnetic tape was used as input and output devices.