Explanation

• Ctrl + L → Left Align

• Ctrl + E → Center Align
• Ctrl + R → Right Align
• Ctrl + J → Justify

Last verified on 28-09-2026

Explanation

The F4 key is commonly used to repeat the last action in programs like Microsoft Word and Excel.

For example, if you format text or perform a specific action, pressing F4 will repeat it.

Last updated question by NA on 07 May 2026

Explanation

• Ctrl + M → Increase Left Indent

Additional information:

• Ctrl + Shift + M → Decrease Left Indent
• Ctrl + N → New Document
• Ctrl + W → Close Document

Last verified on 28-09-2026

Explanation

• In MS Word, the shortcut key Ctrl + Right Arrow moves the cursor one word to the right.

Additional information:

• Ctrl + Left Arrow moves the cursor one word to the left.
• Ctrl + Up Arrow moves the cursor one paragraph up.
• Ctrl + Down Arrow moves the cursor one paragraph down.

Last verified on 28-09-2026

Explanation

• Data transmission means sending and receiving data through a transmission medium.
• It allows information to move from one device to another.
• Transmission media can be wired or wireless.
• Wired: Twisted-pair cable, coaxial cable, fiber-optic cable.
• Wireless: Radio waves, microwaves, infrared, and satellite communication.

Last verified on 28-09-2026

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 Office Button was introduced in Microsoft Office 2007.
• It was located at the upper-left corner of the Word window.
• It provided commands such as New, Open, Save, Print, and Close.

Last verified on 28-09-2026

Explanation

• A network is a group of two or more computers connected together.
• It allows computers to share information and resources.
• Resources may include files, printers, applications, and internet connections.

Additional information:

• Router: A device that directs data between networks.
• Server: A computer that provides services or resources to other computers.
• Pipeline: A mechanism for processing or transferring data.

Last verified on 28-09-2026

Explanation

• Monitor, Printer, and Headphones are all output devices.
• Output devices present or produce information from a computer for the user.

Additional information:

• Monitor: Displays text, images, and videos.
• Printer: Produces information on paper.
• Headphones: Produce audio or sound output.

Last verified on 28-09-2026

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