Explanation

Alternatively referred to as Control W and C-w, Ctrl+W is a shortcut key most often used to close a program, window, tab, or document.

Explanation

• Encryption is used to protect data and passwords.
• Process: Converts data into a secret code (ciphertext).
• Key: Requires a decryption key to read.
• Data protection: At rest and in transit.
• Decryption: Converts ciphertext into readable data.

Last updated on 30 Oct 2026

Explanation

Copy and paste: Duplicates the text, allowing it to remain in the first document while also inserting it into the second document.

Explanation

CAI refers to using computers to help in the teaching and learning process.

It enhances learning by providing interactive and personalized instruction.

Explanation

A nibble can have 16 possible values due to the four bits that are the same as one hexadecimal.

In computer architecture, 8-bit integers or other data units are those that are 8 bits 

Unit of: digital information, data size

Unit system: unit derived from bit

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Explanation

• BIOS (Basic Input/Output System) is the firmware that controls a computer's hardware components and provides a interface for configuring settings.
• It is typically stored in a flash memory chip on the motherboard, which is a non-volatile memory type that retains data even when power is turned off.

Explanation

Downloading means receiving data or a file from the Internet on your computer.

Uploading means sending data or a file from your computer to somewhere on the Internet.

Explanation

• IP stands for Internet Protocol.
• Developed by Vint Cerf and Bob Kahn in the 1970s.
• It is a numerical value assigned to each device in a computer network.

Last updated 18-07-2026 by NA

Explanation

Windows key or Ctrl + Esc: Open Start menu.

MUG 11-12-2022

Explanation

The CPU (Central Processing Unit) is a hardware component of the computer.

It performs all processing and calculations, acting as the computer’s brain.

The CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program.