Explanation

• The shortcut key for Undo (last action reverse) is Ctrl + Z in most computer systems.
• It is used to cancel the last mistake or action.

Additional information:

• Ctrl + P = Print
• Ctrl + Y = Redo
• Ctrl + S = Save
• Ctrl + C = Copy command
• Ctrl + V = Paste
• Ctrl + C = Copy
• Ctrl + X = Cut
• Ctrl + Y = Redo

Last verified on 10-06-2026

Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last verified on 24-06-2026

Explanation

• The first general elections in Pakistan were held on 7 December 1970.
• Conducted under the Legal Framework Order (LFO) issued by General Yahya Khan.

Seats Structure:

Total seats: 313 seats in National Assembly

General seats: 300 seats

• East Pakistan: 162 seats
• West Pakistan: 138 seats

Reserved seats for women: 13 seats

• East Pakistan: 7 seats
• West Pakistan: 6 seats

Main Results:

Sheikh Mujibur Rahman (Awami League)

• Seats won: 167
• Votes: 12,937,162
• Percentage: 39.20%

Zulfikar Ali Bhutto (PPP)

• Seats won: 86
• Votes: 6,148,923
• Percentage: 18.63%

Last verified on 21-06-2026

Explanation

Explanation

• K-2 (Godwin Austin) has a total height of 8,611 meters (28,251 feet).
• It is the second-highest mountain in the world after Mount Everest.
• K2 is part of the Karakoram Range.
• It is located on the Pakistan–China border in the Gilgit-Baltistan region of Pakistan.
• The letter "K" stands for Karakoram.

Last verified on 12-03-2026

Explanation

• F5 key is used to refresh or reload a web page.
• It updates the page to show the latest content.
• Commonly used in browsers like Google Chrome and Mozilla Firefox.

Additional information:

• Ctrl + R → Refresh page
• Ctrl + Shift + R → Hard refresh (clear cache)
• F11 → Full screen mode
• Ctrl + T → Open new tab
• Ctrl + W → Close current tab

Last verified on 19-04-2026

Explanation

• Ctrl + K → Insert Hyperlink

Additional information:

• Ctrl + P → Print
• Ctrl + F2 → Print Preview
• Ctrl + H → Replace dialog box
• Ctrl + D → Font dialog box

Last verified on 06-07-2026

Explanation

• Saturn is famous for its prominent and beautiful ring system.
• Its rings are made mainly of ice particles, dust, and rock fragments.

Additional information:

• It is the second-largest planet in the Solar System.
• It is often called the “Ringed Planet.”
• Famous moon: Titan
• Orbital period: About 29.5 Earth years
• It is the sixth planet from the Sun.

Last verified on 27-09-2026

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

Explanation

• PowerPoint is used for Create presentations from scratch or a template.
• Add text, images, art, and videos.
• Select a professional design with PowerPoint Designer.

Last verified on 03-04-2026