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

Explanation

• The default page orientation in MS Word is Portrait.
• Portrait orientation means the page height is greater than its width.
• This orientation is commonly used for documents, letters, and reports.

Additional information:

• Page orientation can be changed from Layout → Orientation.
• Landscape mode is mainly used for tables and wide content.

Last verified on 17-01-2026

Explanation

• Primary storage, also known as main storage or memory.
• It is the area in a computer in which data is stored for quick access by the computer's processor.
• The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

Last verified on 10-08-2026

Explanation

• Machine Language is the lowest-level computer language, written entirely in binary code (0s and 1s).
• It is directly understood by the computer’s CPU without any translation.
• All higher-level languages (like C, Pascal, Basic) are converted into machine language before execution.

Last verified on 12-03-2026

Explanation

• The SUM function in MS Excel is used to add numbers from selected cells or ranges (e.g., =SUM(A1:A5)).
• It is one of the most commonly used functions for quick total calculations in spreadsheets.

Last verified on 26-05-2026

Explanation

• Compiler Function: Converts high-level language into machine language.
• Output: Produces an object file (.obj / .exe) after compilation.
• Examples of Languages Using Compiler: C, C++, Java (uses compiler + JVM).

Additional information:

• Compiler: Translates whole program at once.
• Interpreter: Translates line by line.

Last verified on 21-02-2026

Explanation

• The shortcut key to print a document is Ctrl + P.

Additional Information:

• Hyphen (-) is used to select a range for printing a document.
  
• By default, the documents are printed in portrait-oriented mode.
• Ctrl + A = select all
• Ctrl + B = Bold
• Ctrl + I = Italic
• Ctrl + P = Print
  
• Ctrl + Y = Redo
• Ctrl + S = Save

Last verified on 10-08-2026

Explanation

• Ctrl + V pastes copied or cut content from the Clipboard.

Additional information:

• Ctrl + C copies selected content to the Clipboard.
• Ctrl + X cuts selected content and places it on the Clipboard.
• Ctrl + A selects all content in the document.
• Ctrl + B applies bold formatting to selected text.

Last verified on 10-08-2026

Explanation

Explanation

• A chart represents data visually, making it easier to understand and compare information.
• Common types include bar charts, line charts, pie charts, and column charts.
• Charts are widely used in MS Excel to present numerical data graphically.

Additional information:

• A bar chart compares categories.
• A line chart shows trends over time.
• A pie chart represents parts of a whole.

Last verified on 10-08-2026