Explanation

• Alexander Graham Bell is credited as the inventor of the telephone.
• He was awarded the first successful patent for it.
• The telephone was invented in 1876.
• Bell made the first-ever telephone call to his assistant Thomas Watson.

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

Explanation

• Title: Abu Al-Bashar (Father of Mankind)
• Prophet: Hazrat Adam (A.S)
• Wife: Hawwa (Eve)
• Status: First human being and first prophet
• Religion: Islam (submission to Allah)

Last updated by NA on 05-11-2026

Explanation

• GT Road: Grand Trunk Road
• Constructed/Developed by: Sher Shah Suri
• Purpose: Connected major cities and improved trade and travel.
• Original Name: Known as Sadak-e-Azam or Badshahi Sarak.
• Length: 3,655 km (2,271 mi)
• East end: Teknaf, Bangladesh
• West end: Kabul, Afghanistan

Last updated by NA on 05-11-2026

Explanation

• DMA stands for Direct Memory Access.
• It is a method that allows an I/O device to transfer data directly to or from main memory (RAM).
• The CPU does not need to handle every individual byte of the transfer.
• DMA can improve data-transfer speed and reduce CPU workload.
• It is commonly used for devices such as disk drives, network cards, and sound cards.

Last updated by NA on 05-11-2026

Explanation

• The President of Pakistan is the head of state of the Islamic Republic of Pakistan.
• - Current President: Asif Ali Zardari
• - President Number: 14th President of Pakistan
• - Assumed Office: 10 March 2024
• - Role: Head of State and Supreme Commander of the Armed Forces.
• - Term: Five years.
• - Election: Indirectly elected by the Electoral College.

Last updated by NA on 05-11-2026

Explanation

• - Full Name: Maulana Muhammad Ali Jauhar
• - Born: 10 December 1878, Rampur, India.
• - Profession: Indian Muslim leader, journalist and political activist.
• - Muslim League: Founding member of the All-India Muslim League (1906).
• - Khilafat Movement: One of its leading figures.
• - Jamia Millia Islamia: One of its founders (1920).
• - Newspaper: Founded The Comrade in English in 1911.
• - Died: 4 January 1931, London, England.
• - Burial Place: Jerusalem (Bait-ul-Muqaddas), Palestine.

Last updated by NA on 05-11-2026

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 updated by NA on 05-11-2026

Explanation

Light Pen: An input device used to select or draw directly on a computer screen.

- Type: Pointing device.

- Uses: Drawing, selecting, and pointing.

- Example: Selecting an object on a CRT screen.

Last updated by NA on 05-11-2026

Explanation

1 byte equals 8 bits.

Additional Information

Last updated by NA on 05-11-2026