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

The first version of Windows, released in 1985, was simply a GUI offered as an extension of Microsoft's existing disk operating system, or MS-DOS.

Explanation

The ribbon is a command bar that organizes a program's features into a series of tabs at the top of the screen. 

AGM 24-12-2022

Explanation

• The default font size in a new Word document in Word 2003
• Font: Times New Roman.
• Size: 12-point.
• Style: Normal.

Last updated by NS on 06 May 2026

Explanation

 pressing Ctrl + J justifies the current line to evenly space its text or words between the left and right margins of the page.

Explanation

The ALU is the main processing unit of a CPU, responsible for performing all arithmetic and logical operations.

It works alongside other components like registers and cache to execute instructions efficiently.

Explanation

MS Word (Microsoft Word) is a word processing software, which allows users to create, edit, and print documents.

It is a popular application software used for:

• Typing and editing text
• Formatting documents
• Adding images and graphics
• Creating tables and columns
• Printing and sharing documents

Explanation

• The process of dividing the disk into tracks and sectors is called formatting.
• In computer disk storage, a sector is a subdivision of a track on a magnetic disk or optical disc.

Last updated 09 Nov 2026 by NA

Explanation

Ms. Excel is a Spreadsheet program

MS Excel is based on WINDOWS

shortcut key in  MS Excell:

which key is used for help in MS excel?

 F1

***

Shift+Backspace

**

Which key is used to enter the current date in Excel?

 Ctrl+;

Which key is used for the GO TO tab in Ms. Excel?

 F5 

Which key is used for excel column highlight?

CTRL + space

What is the keyboard shortcut to insert a SUM formula in MS Excel?

 ALT + =

***

The delete key of the keyboard is assigned to which command in excel?

 Edit > Clear > Contents

****

The shortcut key to insert a new worksheet in Excel is _____.

 Shift + F11

****

in excel which key is used to format numbers in comma format?

 shift+1

*****

In Excel which shortcut key is used to go to the formula tab?

 Alt+M

ND11-3-2023

Explanation