Who designed the mechanical 'Difference Engine' in 1822 to automatically compute and tabulate mathematical error-free polynomial tables? MCQ with Answer and Explanation
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Question #1
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Which characteristic of a computer allows it to retain data indefinitely, making information instantly retrievable at any future time?
Correct Answer: Option D
Explanation:
Storage capacity (both primary and secondary memory) enables a computer to store massive amounts of records securely for subsequent reuse.
Storage capacity (both primary and secondary memory) enables a computer to store massive amounts of records securely for subsequent reuse.
This question belongs to:
Computer
Computer Fundamentals
Question #2
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What is the main purpose of an input device?
Correct Answer: Option A
Explanation:
Input devices are used to feed data and instructions into the computer.
Input devices are used to feed data and instructions into the computer.
This question belongs to:
Computer
Computer Fundamentals
Question #3
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Which device is an example of an input device?
Correct Answer: Option A
Explanation:
A keyboard is an input device used to enter data and instructions into a computer.
A keyboard is an input device used to enter data and instructions into a computer.
This question belongs to:
Computer
Computer Fundamentals
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