26. Which of these is open-source software?
- MS Office
- Windows 11
- Linux
- Adobe Photoshop
Answer: C) Linux
Explanation: Linux source code is freely available.
MCQs / Computer Science / Computer Software
Computer Software MCQs — Computer Science (page 2)
44 multiple-choice questions on Computer Software from Computer Science, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.
27. The 3-2-1 backup rule recommends keeping one copy:
- printed on paper
- off-site or in the cloud
- on the same disk
- in RAM only
Answer: B) off-site or in the cloud
Explanation: 3 copies, 2 media, 1 off-site.
28. If a newly connected graphics card does not work properly, the most likely missing software is:
- its device driver
- a web page
- a spreadsheet
- a game
Answer: A) its device driver
Explanation: Without a driver the OS cannot control the card correctly.
29. MS Word, Excel and PowerPoint are examples of:
- utilities
- device drivers
- productivity software
- system software
Answer: C) productivity software
Explanation: They help users produce work.
30. Google Chrome is generally classified as:
- freeware
- shareware
- licensed paid software
- a device driver
Answer: A) freeware
Explanation: It is free to use but its full source is not the same as open source (Chromium is the open project).
31. The program written by a programmer in a high-level language is called:
- machine code
- source code
- object code
- binary file
Answer: B) source code
Explanation: After translation it becomes object code.
32. VLC media player and video games are examples of:
- device drivers
- entertainment software
- business software
- compilers
Answer: B) entertainment software
Explanation: They are used for media and fun.
33. Software whose source code is freely available for anyone to modify is:
- open-source software
- shareware
- freeware
- proprietary software
Answer: A) open-source software
Explanation: Open source shares the code.
34. MS Windows and Adobe Photoshop are examples of:
- freeware
- open-source software
- licensed (proprietary) software
- public-domain software
Answer: C) licensed (proprietary) software
Explanation: They must be purchased under licence.
35. A backup that copies only files changed since the last backup of any kind is a(n):
- differential backup
- mirror image
- incremental backup
- full backup
Answer: C) incremental backup
Explanation: Incremental backups are small and fast.
36. Software is:
- only the operating system
- a set of programs and instructions
- the electricity used by a computer
- the physical parts of a computer
Answer: B) a set of programs and instructions
Explanation: Software tells hardware what to do.
37. A program that allows the operating system to communicate with a printer is a:
- device driver
- spreadsheet
- web browser
- compiler
Answer: A) device driver
Explanation: Drivers translate OS commands for specific devices.
38. System Restore in Windows is an example of a:
- word processor
- device driver
- compiler
- recovery utility
Answer: D) recovery utility
Explanation: It returns the system to an earlier working state.
39. WinZip and 7-Zip are examples of:
- file compression utilities
- antivirus programs
- compilers
- operating systems
Answer: A) file compression utilities
Explanation: They reduce file size.
40. A full backup:
- copies all selected data
- copies only changed files
- deletes old files
- compresses the CPU
Answer: A) copies all selected data
Explanation: It is complete but takes the most time and space.
41. An interpreter translates and executes a program:
- without translating
- only after creating an .exe file
- line by line
- all at once
Answer: C) line by line
Explanation: It stops at the first error.
42. Which translator shows all errors together after translating the whole program?
- Assembler only
- Loader
- Interpreter
- Compiler
Answer: D) Compiler
Explanation: A compiler reports errors after the full translation.
43. Copying and distributing licensed software without permission is called:
- software piracy
- open sourcing
- compiling
- defragmentation
Answer: A) software piracy
Explanation: It violates copyright law.
44. Execution of a compiled program is generally:
- slower than an interpreted one
- impossible without the compiler
- faster than an interpreted one
- always line by line
Answer: C) faster than an interpreted one
Explanation: The machine code runs directly.
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Practise Computer Software MCQs
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