Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It performs all calculations, executes instructions, and controls other components.

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 verified on 15-02-2026

Explanation

• WWW stands for World Wide Web.

Additional information:

• It is an information system.
• First published: 6 August 1991
• Founder: Tim Berners-Lee in 1989.
• Birthplace: CERN near Geneva, Switzerland.

Last verified on 01-07-2026

Explanation

• United Nations (UNO) recognizes six official working languages.

Additional information:

• Official Languages: Arabic, Chinese, English, French, Russian, Spanish
• Founded: 24 October 1945
• Headquarters: New York, USA
• Purpose: Promote international peace, security, and cooperation
• Members: 193 countries

Last verified on 15-01-2026

Explanation

• Name: Hazrat Shoaib (A.S)
• Title: Khatib-ul-Anbiya (Speaker of the Prophets) due to his powerful speech and preaching style.
• Nation: People of Madyan and Aykah
• Main message: Truthfulness, fair business, worship of Allah
• Relationship: Father-in-law of Hazrat Musa (A.S)

Last verified on 11-06-2026

Explanation

• The Pacific Ocean is the largest and deepest ocean on Earth.
• It covers about 30% of the Earth's surface.
• It contains 97% of the Earth's water.
• The Mariana Trench, the deepest part of the ocean.
• It is located in the Pacific.
• The Arctic Ocean is connected to the Pacific Ocean via the Bering Strait.

Additional information:

• Oceans cover 71% of the Earth's surface.
• The Indian Ocean is the warmest, with the Persian Gulf being the hottest area.
• The Diamantina Trench is the deepest point in the Indian Ocean.
• Jordan does not have an ocean.
• The Arctic Ocean is the Smallest Ocean of the world.

Last verified on 27-05-2026

Explanation

Russia Currency is Ruble.

Russia Capital is Moscow.

Russia official language is Russian.

Russia located is in Continent Europe/ Asia.

Russia Primary Religion is Christianity.

Russia Head of Govt. is Prime Minister –Mikhail Vladimirovich Mishustin.

Russia Parliament called Duma & Federal Council.

Tricks for Remember

Last verified on 01-07-2026

Explanation

Bangladesh Currency is Taka.

Bangladesh Capital is Dhaka.

Bangladesh official language is Bangla.

Bangladesh located is in Continent Asia.

Bangladesh Primary Religion is Islam.

Bangladesh Parliament called Jatia Parliament.

Tricks for Remember

Last verified on 01-07-2026

Explanation

• Hazrat Yasir ibn Amir (RA), was the first male martyr (Shaheed) in Islam.
• His wife Hazrat Sumayyah bint Khayyat (RA), is the first Female martyr (Shaheedah) of Islam
• Hazrat Harith bin Abi Hala (RA) is the first child martyr (Shaheed) 

Last verified on 01-07-2026

Explanation

• The first Azan (Fajr Prayer) in Islam was called in 1 A.H.
• It was established after the migration to Madinah.
• Bilal ibn Rabah (RA) was the first Muezzin.
• He is known as Sayyid al-Mu’azzinin (Leader of Muezzins).
• He was chosen by Prophet Muhammad (PBUH).
• The purpose was to call Muslims to prayer.

Last verified on 28-04-2026

Explanation

• Ctrl + N is to open a new document in MS Word.

Additional information:

• Ctrl + M -- Indent the paragraph.
• Ctrl + B -- Bold highlighted selection.
• Ctrl + D -- Font options.
• Alt + F -- File menu options in the current program.
• Alt + E -- Edits options in the current program.

Last verified on 19-04-2026