Explanation

• A computer is an electronic device that accepts, processes, stores, and produces information by executing a set of stored instructions.
• A computer works according to stored instructions, called a program.
• It performs both arithmetic and logical operations.
• It follows instructions sequentially, unless the program specifies a different sequence.
• The basic process is Input → Processing → Output → Storage.

Last verified on 11-08-2026

Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It performs all calculations, executes instructions, and controls other components.

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 verified on 15-02-2026

Explanation

• HTML: Hypertext Markup Language.
• Purpose: Creates and structures web pages.
• HTML File Extension: .html or .htm.
• It uses tags to structure content such as headings, paragraphs, images, links, and tables.

Last verified on 11-08-2026

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

• 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