Question Detail

In the second generation of computers, vacuum tubes (also known as thermionic valves) were replaced by transistors. Why this was a major upgrade:

• Size: Transistors were much smaller than vacuum tubes, allowing computers to become more compact.
• Heat: They generated significantly less heat, making the systems more reliable.
• Power: They required much less electricity to operate.
• Speed: They allowed for faster switching, which increased the overall processing speed of the computer.

This shift occurred roughly between 1956 and 1963. Following this, the third generation replaced individual transistors with Integrated Circuits (ICs).