What is the hexadecimal equivalent of decimal 255? MCQ with Answer and Explanation

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What is the hexadecimal equivalent of decimal 255?

A. FF

B. FD

C. FC

D. FE

Answer: Option A

Solution (By JKSSB Mock Tests)

255 in decimal is FF in hexadecimal (15*16 + 15).

This question belongs to: Computer Computer Fundamentals

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Question #1

Which type of computer is designed for a single user?

A. Supercomputer

B. Mainframe

C. Minicomputer

D. Microcomputer

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Correct Answer: Option D

Explanation:
Microcomputers, like desktops and laptops, are designed for individual use.

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Question #2

The concept of 'Artificial Intelligence', natural language processing, and quantum computing research are the defining pillars of which generation?

A. Third Generation

B. Fifth Generation

C. Fourth Generation

D. Sixth Generation

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Correct Answer: Option B

Explanation:
The Fifth Generation of computers is centered around Artificial Intelligence, advanced parallel processing, and knowledge-based processing systems.

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Question #3

Which of the following is a characteristic of first-generation computers?

A. Used machine language

B. Used magnetic cores

C. Used microprocessors

D. Used high-level languages

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Correct Answer: Option A

Explanation:
First-generation computers were programmed in machine language (binary) and used vacuum tubes.

This question belongs to: Computer Computer Fundamentals

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