MCQ Practice

Computer & IT MCQs

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Which of the following components has input, output, and storage available?

A. Firmware
B. Software
C. Hardware
D. All of these

Explanation:
Hardware provides input, output, and storage capabilities.

A program representing eight symbols is called ____.

A. Binary
B. Octal
C. Decimal
D. None of these

Explanation:
Octal represents eight symbols (0-7).

In which of the following forms is data stored in a computer?

A. Decimal
B. Binary
C. Hexadecimal
D. Octal

Explanation:
Computers store all data in binary form.

Bit is also called ____.

A. Binary Unit
B. Binary Digit
C. Binary System
D. Digital System

Explanation:
Bit stands for Binary Digit.

Which amongst the following is the smallest unit of storage?

A. Bit
B. Nibble
C. Byte
D. Megabyte

Explanation:
A bit is the smallest unit of data storage.

Primary storage is ____ as compared to secondary storage.

A. Fast and inexpensive
B. Slow and inexpensive
C. Fast and expensive
D. Slow and expensive

Explanation:
Primary storage (RAM) is fast but more expensive than secondary storage.

No computer can do anything without a ____.

A. Memory
B. Chip
C. Program
D. Output

Explanation:
Memory is essential for any computer operation.

Which is used for ON/OFF ____.

A. Fuse
B. Switch
C. Breaker
D. All of these

Explanation:
A switch is used to turn the computer ON or OFF.

Which physical part of a computer is responsible for connecting various components and peripherals?

A. Path
B. Address Bus
C. Route
D. All of these

Explanation:
The address bus helps connect and address components.

A bus with 32 data lines can transport how many bits at a time?

A. 8 bits
B. 16 bits
C. 32 bits
D. 0 only

Explanation:
A 32-line data bus can transfer 32 bits simultaneously.

Practice Important Questions

This section provides important MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams.

Improve Conceptual Understanding

Each MCQ is designed to strengthen your understanding of key concepts and improve analytical thinking required in exams.

Exam-Oriented Preparation

These MCQs follow actual exam patterns, helping aspirants practice relevant questions and improve performance.

Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, and other competitive exams, improving accuracy and confidence.