Explanation

• Ctrl + Z used for = Undo

Additional information:

• Ctrl + X used for = Cut
• Ctrl + Y used for = Redo

Last verified on 07-06-2026

Explanation

• In MS Word, the Help feature is used to get guidance about tools and commands.
• The shortcut key to open Help is F1.
• It opens Microsoft Word Help window or support page.

Additional information:

• F2: Used to move or rename text.
• F3: Inserts AutoText entries if available.
• F4: Repeats the last action performed.
• F5: Opens the "Find and Replace" dialog box with the "Go To" tab active.

Last verified on 29-05-2026

Explanation

1 byte equals 8 bits.

Additional Information

Last verified on 12-10-2026

Explanation

• The ALU (Arithmetic Logic Unit) is the core component of the CPU.
• It performs both arithmetic operations (calculations) and logical operations (comparisons).
• Without ALU, a computer cannot process data.
• ALU works together with the Control Unit (CU).

Last verified on 06-05-2026

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

• 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

• Windows Logo + F: Opens the file-search feature in older versions of Microsoft Windows.
• F3 Key: Commonly opens or activates the search function in Windows File Explorer.

Additional information:

• Ctrl + C: Copies the selected text, file, or folder.
• Ctrl + V: Pastes copied or cut content.
• Ctrl + X: Cuts the selected text, file, or folder.
• Ctrl + Z: Undoes the last action.
• Alt + F4: Closes the active window or application.

Last verified on 12-10-2026

Explanation

• HTML is the standard markup language used to create and structure web pages.
• HTML defines elements such as headings, paragraphs, images, links, and lists.
• HTTP is a protocol used to transfer web resources between clients and servers.

Last verified on 12-10-2026

Explanation

• Ctrl + Home moves the cursor to the beginning of the document in MS Word.
• Home alone moves the cursor to the beginning of the current line.

Additional information:

• Ctrl + ↑ — Beginning of previous paragraph
• Ctrl + End — End of document
• End — End of line

Last verified on 26-08-2026

Explanation

• URL stands for Uniform Resource Locator.
• It is a specific type of Uniform Resource Identifier (URI).
• Domain: World Wide Web
• First published: 1994
• Latest version: Living Standard, 2023

Used:

• Web page (HTTP/HTTPS)
• File transfer (FTP)
• Email (mailto)
• Database access (JDBC)

Last verified on 08-06-2026