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

• 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

• BCC stands for: Blind Carbon Copy
  • Used in: Email communication
  • Purpose: Hides recipient email addresses from other recipients

Additional information:

• CC (Carbon Copy): Recipients are visible to all
• BCC: Recipients are hidden from everyone except the sender

Last verified on 16-01-2026

Explanation

• Purpose: Prevents text from being hidden in the binding
• Location: Can be added to left or top depending on binding type
• Adjustable in: Layout > Margins > Custom Margins > Gutter

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

DHCP automatically assigns IP addresses to devices.

It also provides subnet mask, gateway, and DNS information.

DHCP stands for Dynamic Host Configuration Protocol,

Last verified on 15-01-2026

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

CPU stands for Central Processing Unit

• CPU is an example of hardware
• A CPU contains  A control unit and an arithmetic logic unit
• The CPU and memory are located on Motherboard.
• The motherboard holds CPU, RAM and ROM chips, etc.

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.