Explanation

• Invented by: Dennis Ritchie.
• First appeared: 1972.
• Developed at: Bell Laboratories, USA.
• Company: AT&T.
• Type: General-purpose programming language.
• Co-developer of: UNIX.
• Known as: Father of C Language.

Last updated by NA on 05-11-2026

Explanation

• Data Processing: Performs calculations and operations.
• Data Storage: Stores data and information.
• Data Movement: Transfers data between devices.
• Control: Manages computer operations.

Last updated by NA on 05-11-2026

Explanation

CAD, or CADD, is short for computer-aided design or computer-aided design and drafting.

CAD is a software used in the computer systems by: 

• Engineers
• Architects
• Drafters
• Artists

Last updated by NA on 04-11-2026

Explanation

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

• 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