MCQ Practice

Computer & IT MCQs

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The headphone of the computer is which type of device?

A. Input
B. Output
C. Input & Output
D. Neither

Explanation:
Headphones are output devices that deliver audio.

Speakers are ____.

A. Output Devices
B. Input Devices
C. Both A and B
D. Hard Output

Explanation:
Speakers are output devices that produce sound.

When a song is played through a speaker, what type of device is produced?

A. Soft output
B. Hard Input
C. Soft and hard Output
D. Hard Output

Explanation:
The speaker produces both soft (sound) and hard (electrical-to-mechanical) outputs.

For hearing and playing music, which technology is required?

A. Sound Card and Speakers
B. Sound Card
C. Microphone
D. None of these

Explanation:
A sound card and speakers are required for audio output.

____ are used to display data.

A. Storage devices
B. Communication devices
C. Input devices
D. Output devices

Explanation:
Output devices (monitor, printer, etc.) display data.

Name the type of mouse that uses laser technology to detect the motion of the ball.

A. Optical mouse
B. Mechanical
C. Opto-mechanical
D. All of these

Explanation:
An optical mouse uses a laser/LED to detect movement.

Function of a mouse is similar to that of a ____.

A. Joystick
B. Keyboard
C. Camera
D. Monitor

Explanation:
Both the mouse and the joystick are pointing input devices.

A joystick is a(n) ____ device.

A. Input
B. Output
C. Storage
D. Processing

Explanation:
A joystick is an input device used for gaming and control.

Barcode reader is a(n) ____.

A. Output device
B. Input device
C. Display
D. Storage

Explanation:
A barcode reader is an input device that scans barcodes.

Which is used in security systems and criminal investigations?

A. Finger print reader
B. Robots
C. Sound Card
D. Barcode Reader

Explanation:
Fingerprint readers are used in security and criminal investigations.

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.