Class 9 · कंप्यूटर · 255+ Q&A
IT basics, hardware, software, internet safety and MS Office for Class 9. Showing 20 of 22 on page 1 / 2.
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Correct option: B — system software that manages hardware and programs
Windows, Linux and Android are OS families — not a fictional Windows 12 as a fact.
Correct option: B — Ubuntu Linux
Excel and Chrome run on top of an OS.
Correct option: B — starting the computer and loading the OS
Cold boot is from power-off; warm boot is a restart.
Correct option: B — Excel workbook
The OS uses extensions to pick a default program.
Correct option: B — several programs to appear to run at once
The CPU switches rapidly among tasks.
Correct option: B — hold deleted files until emptied
Emptying it frees disk space.
Correct option: B — Graphical User Interface
Icons, windows and menus versus a text-only command line.
Correct option: B — long, mixed and not reused on every site
The OS can enforce password rules; users must still choose well.
Correct option: B — a mobile operating system
It manages phone hardware and apps.
Correct option: B — prepares it and can erase previous file structures
Do this only with permission; data can be lost.
Correct option: B — lock, switch user or open security/task tools
Exact menu depends on the Windows version in the lab — not a made-up Windows 12.
Correct option: B — a container to organise files on storage
Also called a directory.
Correct option: B — saves state and uses little power; work can resume
Different from a full shutdown.
Correct option: B — drive, folders and file name on Windows-style systems
Backslash is common in Windows paths.
Correct option: B — install programs and change system settings (lab teacher account)
Students usually have limited accounts.
An OS is system software that sits between user/apps and hardware. Functions: process management, memory management, file management, device control, security and user interface. Examples: Windows 10/11, Linux, Android — do not invent a Windows 12 as a fact.
Booting loads the OS into memory so the PC can be used. Cold boot starts from power off. Warm boot is a restart without switching the mains off. Do not force-power-off unless the machine has frozen and a teacher agrees.
GUI uses windows, icons, menus and a pointer. CLI (command-line interface) uses typed commands. GUI is easier for beginners; CLI can be faster for some tasks. Windows Explorer is GUI; a terminal window is CLI.
It stores files in folders, keeps names and extensions, controls save/open/delete, and uses permissions so one student may not wipe another’s work. Recycle Bin holds many deletes. Extensions help pick the program.
The OS loads at boot and then manages processes so Word and a browser can both open. It allocates RAM, keeps files in folders, talks to printers through drivers, and provides a GUI. It also checks login passwords. Recycle Bin, Task Manager and file permissions are everyday OS services on Windows labs; Linux labs use a desktop plus terminal. Do not treat a browser as an OS. Versions in school are real ones (e.g. Windows 10/11), not imaginary Windows 12.
Class 9 Computer में कितने प्रश्न हैं? 255 महत्वपूर्ण प्रश्न: 174 MCQ, 50 लघु, 31 दीर्घ।
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