Explanation

• Raw data processed by a computer becomes Information.
• Data consists of raw, unorganized facts and figures.
• After processing, data becomes meaningful and useful information.
• Information helps users make decisions.

Last verified on 13-07-2026

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

• 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

• .pptx is the standard file format for saving a Microsoft PowerPoint presentation.
• It is the default presentation format in modern versions of PowerPoint.
• The X in .pptx indicates the XML-based Office Open XML format.

Last verified on 24-08-2026

Explanation

• In MS Excel, double-clicking a chart object opens the chart for editing.
• You can then modify its data, design, layout, titles, and formatting.
• A single click generally selects the chart.
• Clicking and dragging is mainly used to move the chart.

Last verified on 24-08-2026

Explanation

• CTRL + H is the shortcut key used in most software (like MS Word, Excel) to open the Find and Replace dialog box.
• It allows users to search for a word or phrase and replace it with another.

Additional information:

• CTRL + F: Only opens the Find dialog
• CTRL + G: Opens the Go To dialog
• CTRL + R: Aligns text to the right in word processors

Last verified on 10-06-2026

Explanation

• In MS Word, Header and Footer options are found in the Insert tab.
• Go to the Insert tab on the top ribbon.
• Look for the Header & Footer group.
• Click on Header or Footer to pick a design or create your own

Last updated 07-09-2026 by NA

Explanation

• Alt + Tab is used to switch between open applications or windows.
• Hold Alt and press Tab to move through currently open windows.
• It is a useful shortcut for multitasking.

Additional information:

• Alt + F4 — Close the active window
• Windows + Tab — Open Task View
• Ctrl + Tab — Switch between tabs
• Windows + D — Show/Hide desktop

Last verified on 24-08-2026

Explanation

• A Cell is the intersection of a row and a column in a spreadsheet such as MS Excel.
• Each cell has a unique cell address, such as A1, B5, or C10.
• Rows are identified by numbers: 1, 2, 3, ...
• Columns are identified by letters: A, B, C, ...
• A cell can contain text, numbers, formulas, or functions.

Last verified on 09-08-2026

Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It processes data and executes instructions.
• It controls other parts of the system.

Additional information:

• First commercial CPU: Intel 4004 (1971)
• Invented by: Italian physicist Federico Faggin
• CPU Examples: Clock speeds – 3.0 GHz, 3.5 GHz, 4.0 GHz, 4.5 GHz, 5.0 GHz

Last updated by NA on 09-09-2026