Explanation

• Operating System: The main software that manages hardware and runs applications.
• It loads during the boot process.
• Without an OS, a computer cannot provide a usable working environment.

Last updated by NA on 04-11-2026

Explanation

1 Gigabyte (GB) =

• - 1,024 MB — Binary system (traditional computing).
• - 1,000 MB — Decimal system (storage manufacturers).

Additional information:

Computer storage size is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

• 1 Kilobyte (KB) = 1024 bytes
• One Megabyte (MB) = 1024 Kilobytes (KB)
• One Gigabyte (GB) =  1024 Megabytes (MB)
• One Terabyte (TB)= 1024 Gigabytes (GB)

Last updated by NA on 04-11-2026

Explanation

• A keyboard is an input device used to enter text, numbers, and symbols into a computer.
• It contains alphabetic, numeric, function, and control keys.
• Keyboards are commonly used for typing documents, entering data, and issuing commands.

Last updated by NA on 04-11-2026

Explanation

• Derived from: computare
• Means: “to calculate”, “to count”, “to sum up” or “to think together”. 

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Last updated by NA on 04-11-2026

Explanation

• 1 Gigabyte (GB) = 1,024 Megabytes (MB) in the traditional binary convention.
• Kilobyte (KB) is smaller than a megabyte.

Additional information:

• Kilobyte (KB) → 1,024 bytes
• Megabyte (MB) → 1,024 KB
• Gigabyte (GB) → 1,024 MB
• Terabyte (TB) → 1,024 GB

Last updated by NA on 04-11-2026

Explanation

• Operating System (OS): It manages hardware, software, and other computer resources.
• Examples: Windows, Linux, macOS.

Last updated by NA on 04-11-2026

Explanation

• Device Driver: Software that helps the operating system communicate with and control hardware.
• Example: Printer driver.
• Device Operator: A person who operates or manages a device.
• Example: Computer operator.
• Device Linking: Connecting devices so they can communicate or share data.
• Example: Connecting a printer to a computer.
• Device Controller: A hardware component that manages a device's operation.
• Example: USB controller.

Last updated by NA on 04-11-2026

Explanation

• Type: Impact Printer
• Printing Method: Pins strike an ink ribbon
• Common Pin Configurations: 9-pin, 24-pin
• Output: Text and graphics
• Main Advantage: Can print multi-part forms

Last updated by NA on 04-11-2026

Explanation

• "Log in" is the correct term used to access an account.
• It involves entering credentials like a username and password.

• Sign up: Create a new account.
• Sign out: Exit your account.

Last updated on 30 Oct 2026

Explanation

• RAM is categorized as volatile and temporary (or primary / main) memory
• It means its data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026