Explanation

• The Social Boycott of Banu Hashim started in the 7th year of Prophethood (Nabvi).
• It was imposed by the Quraysh of Makkah against Banu Hashim and early Muslims.
• The boycott continued for 3 years (7th–10th Nabvi).

Last verified on 03-04-2026

Explanation

• An Operating System (OS) is system software.
• It manages computer hardware and provides a platform for running application software.
• It acts as an interface between the user and computer hardware.

Functions of an Operating System:

• Allocates resources
• Monitors activities
• Manages disks and files

Last verified on 02-07-2026

Explanation

• The shortcut key to insert a new slide in a PowerPoint presentation is Ctrl + M.

Additional information:

• Ctrl + N shortcut key used to create a new presentation document.
• Ctrl + S shortcut key used to save a presentation.

Last verified on 29-05-2026

Explanation

• Pakistan joined the United Nations on September 30, 1947.

Additional information:

• The name was coined by US President Franklin D. Roosevelt.
• Headquarters is located in New York, United States.
• Founded on October 24, 1945.
• It currently has 193 member states and 2 observer states.
• The official languages of the UN are Arabic, Chinese, English, French, Russian, and Spanish.

1. 1952-1953
2. 1968-1969
3. 1976-1977
4. 1983-1984
5. 1993-1994
6. 2003-2004
7. 2012-2013
8. 2025-2026

Last verified on 09-03-2026

Explanation

• Cache Memory is the fastest memory.
• It is typically located inside or very close to the CPU.

Additional information:

• L1 Cache: Usually the fastest and smallest CPU cache.
• L2 Cache: Larger than L1 but generally slower.
• L3 Cache: Larger and usually shared among CPU cores.

Last verified on 09-08-2026

Explanation

• In MS Excel, every formula and function starts with the equal sign (=).
• The = tells Excel that the cell contains a formula, not plain text.
• Functions such as SUM, AVERAGE, and IF also begin with =.
• Without the =, Excel treats the entry as ordinary text.

Last verified on 10-02-2026

Explanation

• .pptx → Default PowerPoint Presentation (2007 and later)
• ppt → PowerPoint Presentation (97–2003)

Additional information:

• .ppsx → PowerPoint Show (opens directly as a slideshow)
• .potx → PowerPoint Template
• .pptm → Macro-enabled Presentation

Last verified on 11-07-2026

Explanation

• The shortcut key to print a document is Ctrl + P.

Additional Information:

• Hyphen (-) is used to select a range for printing a document.
  
• By default, the documents are printed in portrait-oriented mode.
• Ctrl + A = select all
• Ctrl + B = Bold
• Ctrl + I = Italic
• Ctrl + P = Print
  
• Ctrl + Y = Redo
• Ctrl + S = Save

Last verified on 26-05-2026

Explanation

• The capital of Brazil is Brasília.
• Inaugurated: April 21, 1960
• Previous capitals: Rio de Janeiro (1763–1960) and Salvador (earlier colonial period)
• Largest city: São Paulo

Additional information:

• Currency: Brazilian Real (BRL)
• Official Language: Portuguese
• Continent: South America
• Major Religion: Christianity
• National Sport: Football (Soccer)
• Parliament: National Congress
• Independence Day: 7 September
• Independence Year: 1822

Last updated: 27 OCT 2026 

Explanation

• The nucleus contains the cell’s genetic material (DNA).
• DNA carries hereditary information.
• The nucleus controls many cell activities.
• In prokaryotic cells (like bacteria), DNA is not enclosed in a nucleus; it is found in the nucleoid region.
• Genetic material = DNA.