Computer History
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Q41.How many hardware generations of computers have been classified in history?
Correct Answer: D
Computer evolution is classified into five distinct hardware generations based on technology: Vacuum tubes (1st), Transistors (2nd), Integrated Circuits (3rd), VLSI Microprocessors (4th), and ULSI/Artificial Intelligence (5th).
Q42.Fourth-generation (4G) mobile technology is approximately how many times faster than 3G?
Correct Answer: A
4G mobile networks deliver data transmission speeds that are approximately 10 times faster than those of legacy 3G networks.
Q43.Integrated Circuits (ICs) served as the foundational technology of which generation of computers?
Correct Answer: D
Third-generation computers (1964-1971) replaced discrete transistors with Integrated Circuits (ICs), which combined numerous tiny transistors on a small silicon chip.
Q44.Who are collectively known as the fathers of the second generation of computers?
Correct Answer: D
John Bardeen, William B. Shockley, and Walter H. Brattain co-invented the transistor at Bell Labs in 1947, which led to the development of second-generation computers.
Q45.In 2023, which company's stock became the first in history to achieve a $3 trillion market capitalization?
Correct Answer: C
In June 2023, Apple Inc. became the first company in the world to reach a market capitalization of $3 trillion.
Q46.The historic Harvard Mark I computer belongs to which of the following computer generations?
Correct Answer: A
The Harvard Mark I, completed in 1944, belongs to the First Generation of electromechanical and electronic computing systems.
Q47.First-generation computers from the 1940s and 1950s utilized which of the following core electronic technologies?
Correct Answer: D
First-generation computers (such as ENIAC) relied heavily on glass vacuum tubes to control and amplify electrical signals.