Computer Science
Multiple Choice
Questions
(MCQs) – Sets 49
with Detailed Explanations
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SET 49 – Computer Science MCQs
✅ No repetition from Sets 1–48
✅ 10 completely new questions
✅ Each explanation
Level: Class 9–10 / Beginners
1. What is software?
A. Physical parts of computer
B. Set of programs and data
C. Input device
D. Output unit
✅ Correct Answer: B
Explanation:
Software refers to a collection of programs, data, and instructions that tell a computer how to perform tasks. Unlike hardware, software cannot be physically touched. Examples include operating systems, applications, and utility programs that make computers useful.
2. What is system software?
A. User program
B. Games software
C. Software that controls computer operations
D. Drawing software
✅ Correct Answer: C
Explanation:
System software manages and controls the overall operation of a computer. It provides a platform for application software to run. Examples include operating systems, device drivers, and language translators that coordinate hardware and software interaction.
3. What is application software?
A. Controls hardware
B. Used for system maintenance
C. Designed for user-specific tasks
D. Translates programs
✅ Correct Answer: C
Explanation:
Application software is designed to help users perform specific tasks such as word processing, calculations, or browsing the internet. Examples include MS Word, Excel, and web browsers. These programs directly interact with users.
4. What is utility software?
A. Programming language
B. Software for maintenance tasks
C. Game software
D. Input software
✅ Correct Answer: B
Explanation:
Utility software helps maintain, protect, and optimize a computer system. Examples include antivirus programs, disk cleanup tools, and backup utilities. They improve system performance and protect data from threats.
5. What is operating system?
A. Application program
B. Utility software
C. System software that manages hardware and software
D. Programming language
✅ Correct Answer: C
Explanation:
An operating system acts as an interface between the user and computer hardware. It manages memory, files, processes, and devices. Popular operating systems include Windows, Linux, and macOS, which make computers easy to use.
6. What is firmware?
A. Hardware component
B. Software stored in ROM
C. Application program
D. Output software
✅ Correct Answer: B
Explanation:
Firmware is a type of software permanently stored in Read Only Memory (ROM). It controls basic hardware functions. Examples include BIOS and embedded system software used in devices like printers and washing machines.
7. What is open-source software?
A. Paid software
B. Software without license
C. Software with publicly available source code
D. System software
✅ Correct Answer: C
Explanation:
Open-source software allows users to view, modify, and distribute the source code freely. It promotes collaboration and innovation. Examples include Linux and LibreOffice. Open-source software is often free and community-driven.
8. What is proprietary software?
A. Free software
B. Public domain software
C. Software owned by an individual or company
D. Open-source software
✅ Correct Answer: C
Explanation:
Proprietary software is owned by a company or individual and protected by copyright. Users must purchase a license to use it. Examples include Microsoft Windows and Adobe Photoshop, where source code is not publicly available.
9. What is shareware?
A. Fully free software
B. Trial version software
C. Open-source software
D. Firmware
✅ Correct Answer: B
Explanation:
Shareware is software distributed for free on a trial basis with limited features or time. Users are encouraged to purchase the full version after evaluation. It allows users to test software before buying.
10. What is freeware?
A. Paid software
B. Trial software
C. Software available for free use
D. System software
✅ Correct Answer: C
Explanation:
Freeware is software that is available for use at no cost. Unlike open-source software, its source code is usually not available. Examples include free media players and basic utility programs.
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