Explanation

• "CD" most commonly stands for Compact Disc
• Used for storing digital audio, software programs, documents, and videos
• Origin: Co-developed by Philips and Sony, introduced in the early 1980s

Last question by NA on 26 April 2026

Explanation

• AI stands for Artificial Intelligence.
• It refers to machines that can think, learn, and make decisions like humans.
• AI is widely used in computers, mobile apps, and robotics.
• It helps in tasks like voice recognition, image detection, and automation.
• This is used in 5th generation computers.

Last verified on 19-04-2026

Explanation

• DOS stands for Disk Operating System.
• It is an early type of computer operating system used to manage files and programs.
• It works through text-based commands (command line).
• A famous example is MS-DOS used in early PCs. 
• Dennis Ritchie is the father of MS-DOS.
• It was developed in 1982.

Last verified on 19-04-2026

Explanation

• QR stands for Quick Response
• Used in QR codes for fast data access and scanning.

 Last updated 12 april 2026

Explanation

PII means any information that can identify a person

 Examples include:

• Name
• CNIC / ID number
• Phone number
• Email address