Explanation

• Optical storage devices use lasers and light to read and write information.
• Common examples include CDs, DVDs, and Blu-ray discs.
• Optical storage is widely used for music, movies, software, and backup data.

Additional information:

• Optical storage is non-volatile, meaning data is retained without power.
• It is slower than hard drives (HDDs) and solid-state drives (SSDs) but is durable and portable.

Last verified on 17-01-2026

Explanation

• PowerPoint 2003 & earlier: 4 layouts
• PowerPoint 2007 & later: 9 layouts
• Purpose: Text arrangement and slide organization
• Examples: Title Slide, Title and Content, Two Content, Comparison, Blank
• Software: Microsoft PowerPoint

Last verified on 17-01-2026

Explanation

• Clipart refers to pre-made images that are ready for use in MS Word documents.
  • These images help users enhance documents visually without creating graphics from scratch.
  • Clipart is commonly used in presentations, reports, and educational materials.

Additional information:

• Clipart can be inserted via Insert → Pictures / Online Pictures.

Last verified on 17-01-2026

Explanation

A "standalone" computer by definition does not require a network connection to function, as it operates independently. 

A LAN Card (Local Area Network card) is networking hardware used to connect a computer to a network (like the internet or a local office network).

RAM (Random Access Memory) is a crucial component for a computer's basic operation

An operating system (OS) is essential system software that manages the computer's hardware and software resources 

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

In spreadsheets or programming, a function is a pre-defined formula that calculates values in a specific order.

Functions simplify calculations by automating repetitive tasks.

They are used in Excel, Google Sheets, and programming languages.

Additional information:

• Examples of functions: SUM(), AVERAGE(), MAX() in Excel.
• Pre-defined formulas save time and reduce errors compared to manual calculations.

Last verified on 16-01-2026

Explanation

• When inserting content from one application into another, there are two main methods: embedding and linking.
• Embedding stores the content directly in the document.
• While linking keeps it connected to the source file.
• Both methods are part of OLE (Object Linking and Embedding) technology in Microsoft Office.

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

The World Wide Web was created by combining the internet with hypertext concepts.

It was invented in 1989 to improve information sharing at CERN.

Additional information:

Tim Berners Lee also created HTML, HTTP, and the first web browser.

Explanation

Blank DVDs that allow data to be erased and rewritten multiple times are called DVD+RW.

Standard DVDs can only be written once and cannot be reused.

Rewritable DVDs are useful for backups, software, and data transfer.

Additional information:

• DVD+RW can be rewritten up to 1000 times.
• Standard DVD (DVD-R or DVD+R) can only be written once.
• Rewritable DVDs are commonly used for temporary data storage and software testing.

Last verified on 16-01-2026