Explanation

• Spam or junk email refers to unwanted or unsolicited messages sent electronically.
• These emails are often sent in large numbers to many recipients.
• They may contain advertisements, scams, or malicious links.

Last verified on 06-09-2026

Explanation

• An algorithm is a step-by-step set of rules to solve a problem.
• It is used in programming and computer science.
• Algorithms must be clear, finite, and logical.
• Every computer program is based on an algorithm.
• It works like a recipe to reach a solution.

Last verified on 07-02-2026

Explanation

• The transfer of data from one place to another is called data communication.
• It involves sending data through a communication medium like cables or wireless signals.

Last verified on 05-09-2026

Explanation

• An Operating System (OS) is system software.
• It manages computer hardware and provides a platform for running application software.
• It acts as an interface between the user and computer hardware.

Functions of an Operating System:

• Allocates resources
• Monitors activities
• Manages disks and files

Last verified on 02-07-2026

Explanation

• Ctrl + A: Select All

Additional information:

• Ctrl + C: Copy
• Ctrl + V: Paste
• Ctrl + X: Cut
• Ctrl + Z: Undo

Last verified on 02-07-2026