MCQ Practice

Computer & IT MCQs

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The greater than sign is an example of ____ operation.

A. Arithmetic
B. Logical
C. Conditional
D. Greater

Explanation:
Greater than (>) is a logical/relational operation.

Arithmetic Operations are performed by ____.

A. AU
B. CU
C. ALU
D. None of these

Explanation:
The Arithmetic Logic Unit (ALU) performs all arithmetic operations.

In the given logical expression, if two conditions are true, which gate will output True?

A. Not Gate
B. OR Gate
C. NAND Gate
D. XOR Gate

Explanation:
OR gate outputs true if at least one (or both) inputs are true.

The basic operations of Logical operator in a computer is ____.

A. To produce results
B. Logical operation
C. Storage and retrieval
D. All of these

Explanation:
Logical operators perform logical operations to produce true/false results.

In which part of the computer is the execution of instructions done?

A. ALU (Arithmetic Logic Unit)
B. Control Unit
C. Main memory
D. None of these

Explanation:
Actual execution of instructions is performed by the ALU.

Which of the following parts of the CPU controls the sequence of execution of instructions?

A. ALU
B. LU
C. CU
D. ALU

Explanation:
The Control Unit (CU) controls the sequence of execution.

The ALU and CU are components of ____.

A. ROM
B. CPU
C. RAM
D. CAD

Explanation:
ALU and CU are parts of the CPU.

In CPU, all devices are attached with ____.

A. Monitor
B. Motherboard
C. Power supply
D. Hard disk

Explanation:
All devices inside the CPU are attached to the motherboard.

Which of the following executes instructions?

A. Motherboard
B. Hard disk
C. CPU
D. None of these

Explanation:
The CPU executes instructions.

In the computer, which part is the most complicated?

A. Keyboard
B. CPU
C. RAM
D. ROM

Explanation:
The CPU is the most complicated part of the computer.

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.