31.
In which decade were the first successful diode and triode vacuum tubes invented?
A. 1800s B. 1880s
C. 1890s D. 1900s
Answer & Explanation
Answer: Option D
Explanation:
In 1904, John Ambrose Fleming invented the first practical electron tube called the ‘Fleming Valve’, which is a diode rectifier. In 1906, Lee de Forest invented the audion later called the triode, which provided signal amplification.
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32.
RAM stands for…
A. Random Access Memory
B. Really Annoying Machine
C. Read A Manual
D. Real Absolute Memory
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
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33.
Hardware devices that are not part of the main computer system and are often added later to the system.
A. Peripheral
B. Clip art
C. Highlight
D. Execute
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
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34.
On which of the following sites can you set up your email account:
A. Www.linux.org B. Www.gre.org
C. Www.syvum.com D. Www.hotmail.com
Answer & Explanation
Answer: Option D
Explanation:
No answer description available for this question. Let us discuss.
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35.
The main computer that stores the files that can be sent to computers that are networked together is…
A. Clip art
B. Mother board
C. Peripheral
D. File server
Answer & Explanation
Answer: Option D
Explanation:
No answer description available for this question.