Explanation

• An input device is any hardware component used to send data, signals, and commands to a computer. 
• Keyboard: Used to type text and enter commands.
• Mouse: Used to control the cursor and select items.
• Microphone: Used to record sound.
• Scanner: Used to convert physical documents into digital file
  

Last updated by NA on 09-09-2026

Explanation

• Pakistan conducted a series of nuclear tests on 28 May 1998 at the Chagai test site, in Balochistan.
• 5 Nuclear tests were conducted by Pakistan at 15:15 hrs PST on 28 May 1998.
• The tests were performed at Ras Koh Hills in the Chagai District of Balochistan Province.
• Chagai-I was Pakistan's first public test of nuclear weapons.

Additional information:

• Chagai-II is the codename assigned to the second atomic test conducted by Pakistan, carried out on 30 May 1998.
• These tests followed the Chagai-I series.
• The test site was Kharan Desert, Pakistan.
• The number of tests is 1.

Last verified on 30-03-2026

Explanation

• Benevolent means خیر خواہ
• Kind means خیر خواہ
• Generous means فیاض

Last verified on 06-09-2026

Explanation

• LAN stands for Local Area Network.
• It is a network that connects devices within a limited geographical area.
• LAN is commonly used in homes, schools, laboratories, university campuses, and office buildings.
• It provides high-speed communication and resource sharing between connected devices.

Additional information:

• MAN: Metropolitan Area Network – Covers a city or metropolitan area
• WAN: Wide Area Network – Covers a large geographical area (countries/continents)

Last verified on 07-07-2026

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 verified on 31-03-2026

Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It processes data and executes instructions.
• It controls other parts of the system.

Additional information:

• First commercial CPU: Intel 4004 (1971)
• Invented by: Italian physicist Federico Faggin
• CPU Examples: Clock speeds – 3.0 GHz, 3.5 GHz, 4.0 GHz, 4.5 GHz, 5.0 GHz

Last updated by NA on 09-09-2026

Explanation

• SEATO was founded on 8 September 1954.
• Pakistan joined SEATO in the same year 1954 as a member.
• It was a Cold War military alliance led by the United States.
• Pakistan later withdrew its association in the 1970s (after 1972/1973 period changes).
• SEATO was officially dissolved in 1977.

Last verified on 29-04-2026

Explanation

• A Workbook is a collection of related worksheets in spreadsheet software such as MS Excel.
• A workbook can contain multiple worksheets, each with rows and columns.
• A worksheet is an individual spreadsheet page within a workbook.
• For example, a workbook may contain separate worksheets for Sales, Expenses, and Profit.

Last verified on 09-08-2026

Explanation

• BIOS stands for Basic Input Output System.

Additional information:

• BIOS is a firmware stored on a computer’s motherboard.
• Initializes hardware during booting and provides runtime services.
• Acts as an interface between operating system and hardware.

Last verified on 04-02-2026

Explanation

Urdu was declared Official Language of Pakistan under article 251 of the constitution 1973.

The 1973 Constitution contained:

•  280 articles
•  07 schedules with Objective Resolution.
• 12 chapters 

Effective date: 14 August 1973

• Drafted by the Government of Zulfiqar Ali Bhutto
• The Constitution declared Pakistan an Islamic Republic and Islam as the state religion.

Last verified on 05-08-2026