Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Tritium (³H) is the radioactive isotope of hydrogen.
• It undergoes beta (β) decay and changes into Helium-3.

Additional information:

• Hydrogen Isotopes: 3 (Protium, Deuterium, Tritium)
• Protium (¹H): 1 proton, 0 neutrons (Stable)
• Deuterium (²H): 1 proton, 1 neutron (Stable)
• Tritium (³H): 1 proton, 2 neutrons (Radioactive)
• Half-life of Tritium: Approximately 12.3 years

Last verified on 04-08-2026

Explanation

• Data transfer between computers is carried out through communication protocols.
• A protocol is a set of rules that allows computers to communicate and exchange data.
• Common network protocols ensure reliable and secure communication.
• Protocols are essential for the Internet and computer networks.

Last verified on 04-08-2026

Explanation

• An Operating System manages and controls all computer hardware and software resources.
• It acts as an interface between the user and the computer hardware.
• The OS manages memory, files, devices, and running programs.
• Without an Operating System, a computer cannot function properly for users.
• Common operating systems include Windows, Linux, and macOS.

Last verified on 04-08-2026

Explanation

• Caps Lock and Num Lock are Toggle Keys.
• Because they switch a function ON and OFF with each press.
• Caps Lock turns uppercase typing on or off.
• Num Lock enables or disables the numeric keypad.

Additional information:

• Toggle Keys: Caps Lock, Num Lock, Scroll Lock
• Function Keys: F1–F12 (12 keys)
• Modifier Keys: Ctrl, Alt, Shift, Fn, Windows Key
• Navigation Keys: Home, End, Page Up, Page Down, Arrow Keys

Last verified on 04-08-2026

Explanation

• Ctrl + E is the shortcut used to apply center alignment in MS Word.

Additional information:

• Ctrl + L → Left Alignment
• Ctrl + R → Right Alignment
• Ctrl + J → Justify Alignment

Last verified on 06-03-2026

Explanation

• Winner: Arshad Nadeem
• Winning Throw: 92.97 m
• Medal: Gold
• Date: 8 August 2024
• Origin: Mian Channu, Pakistan
• Previous Olympic Record: 90.57 m by Andreas Thorkildsen (Beijing 2008)
• Global Ranking: Sixth longest throw ever; best in the world in 2024

Last verified on 02-02-2026

Explanation

• Winner: Paris Saint-Germain (French Football Club)
• Runners-up: Milan (Italian Club) 
• Final held on 31 May 2025
• Final held in Munich city of Germany

Additional information: 

• UEFA stands for Union of European Football Associations. 
• UEFA is the governing body of football in Europe.

Last verified on 04-08-2026

Explanation

• AI stands for Artificial Intelligence.
• It refers to machines that can think, learn, and make decisions like humans.
• AI is widely used in computers, mobile apps, and robotics.
• It helps in tasks like voice recognition, image detection, and automation.
• This is used in 5th generation computers.

Last verified on 19-04-2026

Explanation

• A Modem (Modulator-Demodulator) converts digital signals into analog signals and vice versa.
• It is used to connect computers to the internet via telephone lines or other networks.

Additional information:

• Switch – connects multiple devices in a network
• Hub – basic network connector
• Repeater – boosts signal strength
• Router – directs internet traffic

Last verified on 19-04-2026