Explanation

• The process of sending information through a channel is called transmission.
• It involves a sender, message, channel, and receiver.
• Effective transmission ensures the message is accurately delivered.

Last verified on 25-01-2026

Explanation

• Short key use for Date and Time 
• Date: Ctrl+;
• Time: Ctrl+ Shift+ ;

Additional information

shortcut key in  MS Excell:

Which key is used to help in MS Excel?

F1

***

Shift+Backspace

**

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

 Ctrl+;

Explanation

For a deadlock to occur in an operating system, four necessary conditions

(known as the Coffman conditions).

1. Mutual Exclusion
2. Hold and Waite 
3. No Preemption
4. Circular Wait

Last updated 15-feb-2026

Explanation

• The ALU (Arithmetic Logic Unit) is a core component of the CPU (Central Processing Unit),
• And the CPU itself is the main processing chip and core component of a computer system (or computer hardware architecture).

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

The data copying process from a server to a personal computer is called:

• Downloading / a download
• Reverse (PC → server) = uploading

Explanation

• CTRL + H opens the "Find and Replace" dialog box.
• It allows you to replace text or specific formatting in MS Word 2007.

Additional information

• CTRL + I: Italicizes selected text.
• CTRL + T: Creates a hanging indent
• Ctrl + F: Opens the Find tab to search for text or formatting.
• Ctrl + G: Opens the Go To tab to navigate to a specific page or element.
• Ctrl + Shift + C: Copies selected text formatting.
• Ctrl + Shift + V: Pastes copied text formatting.

Explanation

there are two parts of A valid email address.

1. email prefix
2. an email domain, 

In the address example@mail.com,

1. "example" is the email prefix,
2. "mail.com" is the email domain.
   
   

Explanation

Yahoo is the oldest.

It was founded in January 1994 by Jerry Yang and David Filo. 

Originally called "Jerry and David's Guide to the World Wide Web,"

Additional information

• AltaVista: launched in 1995. 
• Google: founded later in 1998. 
• Launched by Microsoft in the fall of 1998

Last updated 15-feb-2026

Explanation

• The MAX function in Excel returns the highest value in a set of data
• Syntax: =MAX(number1, [number2], ...).
• Behavior: It evaluates numbers, arrays, or references containing numbers.
• Alternative: For finding the smallest value, the MIN function is used. 

Last updated 27-07-2026 by NA