Explanation

• Updating involves periodically adding, modifying, or deleting records to maintain accuracy.
• It keeps files and databases current and useful for operations.

• Common in accounting software, student records, and inventory systems.
• Helps prevent data redundancy and errors.

Last verified on 20-01-2026

Explanation

Input devices receive data from the user or environment and send it to the CPU.

Examples: Keyboard, mouse, scanner, microphone.

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

Apple is the world's largest tech hardware company

Founded: April 1, 1976, Los Altos, California, United States

Headquarters: Cupertino, California, United States

Founders: Steve Jobs, Steve Wozniak, Ronald Wayne

Explanation

A temporary storage place for information in a computer is primarily called RAM (Random Access Memory), which holds data for active programs

But also cache memory (faster, closer to CPU) or a buffer,

Explanation

Facebook came out on February 4, 2004

Headquarters: Menlo Park, California, U.S.

Founded by Mark Zuckerberg, along with his fellow roommates

Meta Platforms, Inc. is an American multinational technology company

Explanation

• Headers and Footers are sections at the top and bottom of a page in MS Word.
• They are used to display consistent information across all pages, like page numbers, document title, date, or author name.

Last verified on 17-01-2026

Explanation

• High-quality CAD (Computer-Aided Design) systems require precise printing of drawings and graphics.
  • A Digital Plotter is used to print large-scale, accurate, and high-resolution CAD drawings.
  • Digital plotters produce line drawings, blueprints, and architectural plans with exact dimensions.

Last verified on 17-01-2026

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 view in MS Word is Print Layout.
• This view shows the document as it would appear when printed, including margins, headers, and footers.
• It is the most commonly used view for editing and formatting documents.

Last verified on 17-01-2026