Explanation

• The Home tab contains tools for text formatting, including font style, size, color, and alignment.
• It is the primary tab used for editing and styling the content of a document.

Additional information:

• Home tab also includes clipboard, paragraph, and styles groups.

Last verified on 20-01-2026

Explanation

• The computer mouse was invented and developed by Douglas Engelbart,
•  In 1964, at the Stanford Research Institute (SRI). 
• 1964: The prototype was built.
• 1968: Introduced to the public during the famous "Mother of All Demos".

Last update 0n 21-07-2026 by NA

Explanation

• In Microsoft Word, Header and Footer are used to add text, page numbers, or images at the top or bottom of a page.
• They help in document formatting and consistency across multiple pages.

• Location: Insert Tab → Text Group → Header & Footer

Last verified on 17-01-2026

Explanation

• Founder: Mark Zuckerberg
• Founded in: February 4, 2004
• Headquarters: Menlo Park, California, USA
• Users (2023): Over 3 billion monthly active users
• Parent Company: Meta Platforms Inc.

Last verified on 16-01-2026

Explanation

• Pascal’s calculator was called the Pascaline.
• John Mauchly co-invented the ENIAC (first electronic computer) much later.
• Harvard Aliken is unrelated to the first calculator.

Explanation

A device that encodes characters by pressing keys is known as a keyboard

ADDITIONAL INFORMATION RELATED TO KEYBOARD

It is an input device.

It is used to enter text and commands.

Each key represents a character or function.

Christopher Latham Sholes was an American inventor who invented the QWERTY keyboard.

Explanation

CT Scan is a medical imaging technique.

It uses X-rays and computers to create cross-sectional images of the body.

Helps in diagnosing diseases, injuries, and internal conditions.

Additional Details / Facts

First CT scanner was invented in 1972 by Sir Godfrey Hounsfield.

CT images are also called slices, showing body structures in detail.

Explanation

The kernel manages system resources like CPU, memory, and devices.

It acts as a bridge between hardware and software, ensuring smooth operation.

Explanation

Explanation

A pie chart is best suited for showing the proportion of parts to a whole.

As it visually represents data as slices of a circle.

It highlighting the relative sizes of components.