Explanation

• A DVD is a type of optical media 
• DVD stands for Digital Versatile Disc.
• It uses laser technology to read and write data.
• Category: Secondary Storage
• Developed: 1995.
• First Released: 1 November 1996, in Japan.
• Developed by: Sony, Panasonic, Philips, and Toshiba.

Last updated 06 Nov 2026 by NA 

Explanation

- Data manipulation involves modifying, organizing, and transforming data.

- It is commonly referred to as Data Processing.

Last updated 06 Nov 2026 by NA

Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last updated 06 Nov 2026 by NA

Explanation

• The first-ever IBM PC-compatible computer virus, named "Brain'
• It is also known as Pakistani Brain or Lahore
• Developed in January 1986
• By two brothers, Basit Farooq Alvi and Amjad Farooq Alvi,

Last updated by NA on 06-11-2026

Explanation

• A dedicated computer is assigned one and only one specific task.
• It is designed to perform a particular function.
• Dedicated computers are commonly used in ATMs, traffic-control systems, and industrial machines.
• They are optimized for their specific purpose and may be part of an embedded system.

Last updated by NA on 05-11-2026