Explanation

• LCD = Liquid Crystal Display
• LCD is a flat-panel display technology.
• It is used in televisions, computer monitors, smartphones, calculators, and other electronic devices.
• It uses liquid crystals to control light and produce images.

Last verified on 07-09-2026

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

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• Ctrl + S = To save a document.

Additional information:

• Ctrl + X → Cut (remove selected text)
• Ctrl + R → Align text to the right
• Ctrl + E → Center align text
• Ctrl + J → Justify paragraph
• Ctrl + L → Align text to the left
• Ctrl + Q → Remove paragraph formatting (reset to default left alignment)

Last verified on 10-06-2026

Explanation

• The Network Layer (Layer 3) is responsible for logical addressing and routing.
• It uses IP addresses to identify devices across different networks.
• It determines the best path for packets from source to destination.
• Routers primarily operate at this layer.

Last verified on 02-09-2026

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

• Start a presentation from the current slide: Shift+F5
• Start a presentation from the beginning: F5

Additional information

• Ctrl + N: Create a new presentation document
• Ctrl + M: Insert a new slide
• Ctrl + S: save a presentation

Last verified on 26-05-2026

Explanation

• HTTP stands for Hypertext Transfer Protocol.
• It is a protocol for fetching resources such as HTML documents.
• It provides secure communication over a computer network.
•  It can also be used to fetch parts of documents to update Web pages on demand.
• https://www.google.com is called the URL.

Last verified on 04-06-2026

Explanation

• In MS PowerPoint, Ctrl + Home takes you to the first slide of the presentation.
• It is useful when working with a presentation containing many slides.
• Ctrl + End takes you to the last slide.
• These shortcuts help navigate quickly through a presentation.

Additional information:

• Page Up — Previous slide
• Page Down — Next slide
• Home — Go to first slide during Slide Show

Last verified on 24-08-2026

Explanation

• In MS Word, pictures can be inserted through the Insert tab/menu.
• The Pictures option is available under the Insert tab.
• You can insert pictures from your device or other available sources.
• Clip Art was available in older versions of Microsoft Office.

Last verified on 24-06-2026