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

Explanation

• LED (Light Emitting Diode) is a semiconductor device that emits light when electric current passes through it.
• It is widely used in lighting, displays, electronic indicators, and screens.

Additional information:

• Energy efficiency: Up to 90% more efficient than traditional bulbs
  First discovery: H. J. Round – 1907
  Early research: Oleg Losev – 1927
  Practical LED development: James R. Biard – 1961
  First commercial production: October 1962 (Nick Holonyak)

Last verified on 12-03-2026

Explanation

Explanation

Maximum Transmission Unit refers to the largest size of a data packet

That can be transmitted over a network medium.

If a packet is larger than the MTU, it must be fragmented into smaller packets.

Example: Ethernet typically has an MTU of 1500 bytes.

Last updated 15-feb-2026

Explanation

GUI stands for graphical user interface

Origin: First developed at Xerox PARC in the early 1980s.

It is a type of user interface that interacts with electronic devices.

Examples: Microsoft Windows, Apple macOS, and mobile operating systems. 

Last updated 15-feb-2026

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Explanation

ASCII stand for American Standard Code for Information Interchange.

It is a character encoding standard that assigns numerical values (0-127) to English letters, numbers, punctuation marks

Work on the ASCII standard began in May 1961

Definitive version published in 1968

Last updated 15-feb-2026

Explanation

• SDLC stands for Software Development Life Cycle.
• SDLC is a structured process for developing software efficiently.
• It defines stages from planning to maintenance.
• Ensures software is high-quality, cost-effective, and meets requirements.
• Common phases: Requirement Analysis → Design → Implementation → Testing → Deployment → Maintenance.

Last verified on 07-02-2026