26. WIMP stands for:
- Windows, Internet, Memory, Processor
- Web, Internet, Mail, Printer
- Windows, Icons, Menus, Pointer
- Words, Images, Music, Pictures
Answer: C) Windows, Icons, Menus, Pointer
Explanation: These are the elements of a GUI.
MCQs / Computer Science / Operating System and User Interfaces
Operating System and User Interfaces MCQs — Computer Science (page 2)
39 multiple-choice questions on Operating System and User Interfaces 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. Allocating and freeing RAM for programs is:
- file management
- memory management
- network management
- spooling
Answer: B) memory management
Explanation: The OS manages main memory.
28. An ATM screen showing options like "Withdraw", "Balance Inquiry" uses a:
- compiler
- plotter
- menu-driven interface
- command line interface
Answer: C) menu-driven interface
Explanation: The user chooses from a list.
29. In a command line interface the user:
- selects from picture menus only
- speaks to the computer only
- clicks icons with a mouse
- types commands using the keyboard
Answer: D) types commands using the keyboard
Explanation: CLI is text-based.
30. Windows Task Manager is mainly used for:
- monitoring and ending running programs/processes
- browsing the web
- typing documents
- printing photos
Answer: A) monitoring and ending running programs/processes
Explanation: It shows CPU and memory use and running tasks.
31. Which is an example of a menu-driven interface given in your outline?
- Windows 11
- MS-DOS prompt
- UNIX shell
- Novell NetWare
Answer: D) Novell NetWare
Explanation: NetWare utilities were menu-based.
32. Deciding which program gets the CPU and for how long is:
- file management
- device management
- security management
- process management
Answer: D) process management
Explanation: The OS schedules processes on the CPU.
33. The Apple Macintosh (1984) is famous for:
- inventing the CLI
- being the first supercomputer
- popularising the GUI
- introducing punched cards
Answer: C) popularising the GUI
Explanation: It brought the GUI to ordinary users.
34. Which of these is NOT an operating system?
- Linux
- Android
- macOS
- MS Excel
Answer: D) MS Excel
Explanation: Excel is application software.
35. POST stands for:
- Power-On Self-Test
- Primary Output Storage Table
- Program Operating System Test
- Personal Online Service Tool
Answer: A) Power-On Self-Test
Explanation: POST checks hardware at start-up.
36. GUI stands for:
- Graphic Universal Input
- Graphical User Interface
- General User Instruction
- Guided User Internet
Answer: B) Graphical User Interface
Explanation: GUI uses graphics to interact.
37. A main advantage of CLI is that it:
- needs a touchscreen
- uses very little memory and is fast for experts
- is the easiest for beginners
- shows colourful icons
Answer: B) uses very little memory and is fast for experts
Explanation: CLI needs minimal resources.
38. A disadvantage of menu-driven interfaces is that:
- choices are limited and many sub-menus can be slow
- they need powerful graphics cards
- users must memorise commands
- they cannot be used by beginners
Answer: A) choices are limited and many sub-menus can be slow
Explanation: Only listed options are available.
39. Which is a disadvantage of GUI?
- It needs more memory and processing power
- Users must memorise commands
- It is hard for beginners
- It shows only text
Answer: A) It needs more memory and processing power
Explanation: Graphics require more resources.
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