Explanation

Explanation

Encryption is used to protect data and passwords by converting them into a secret code that can only be accessed with the correct decryption key.

This process makes sensitive information unreadable to unauthorized parties,

Protecting it both when it is stored (at rest) and when it is being sent over networks (in motion). 

Explanation

The Shortcut Ctrl+Z is used to undo the last action in a document.

Additional Information:

Crtl + U is a shortcut key used to underline text.

Crtl + D is used to open the font preferences window.

Crtl + X is used to cut selected text and save it to a clipboard ready to paste elsewhere.

Crtl + Y is used to redo the changes or actions made in a document. 

Explanation

The brain of the computer is the CPU

CPU stands for the central processing unit

The first commercial CPU was invented by Italian Physicist Federico Faggin

The first CPU was the Intel 404 released by Intel in 1971.

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The five basic parts of a computer are:

1. the motherboard
2. central processing unit (CPU)
3. input-output units
4. memory (RAM and ROM)
5.  storage (SSD or HDD)
   

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AGM 07.5.23

Explanation

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

Explanation

• VGA stands for Video Graphics Array
• It is a device used to transfer video signals.
• First introduced with the IBM PS/2 line of computers in 1987
• Provides a maximum resolution of 640 x 480 with a refresh rate of 60 Hz

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Last updated by NA on 26 April 2026

Explanation

1 byte equals 8 bits.

Additional Information

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.