General Knowledge - Technology - Discussion

27. 

The invention of the transistor, or semiconductor, was one of the most important developments leading to the personal computer revolution. What company invented the transistor in 1947?

[A]. International Business Machines
[B]. MITS
[C]. Xerox
[D]. Bell Laboratories

Answer: Option D

Explanation:

The transistor, which essentially is a solid-state electronic switch, replaced the much less suitable vacuum tube. Because the transistor consumed significantly less power, a computer system built with transistors was much smaller, faster and more efficient than a computer system built with vacuum tubes.

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