Explanation

Prototypes are early models of a product used to:

• Test functionality (e.g., Does the design work?).
• Gather user feedback (e.g., Is the interface intuitive?).
• Identify flaws before mass production.

Explanation

The File Menu in most applications (e.g., Notepad, Word, Photoshop) contains options like Open, Save, and Save As to access saved files.

Example:

In Microsoft Word: File → Open → Select saved document.

Explanation

Autosum is a feature in Excel that automatically adds numbers in selected cells.

It uses the SUM function.

It is commonly accessed via the Σ (sigma) icon on the toolbar.

Explanation

The invention and advancement of the vacuum or electron tube marked the beginning of the Electronic Era in the early 20th century.

These tubes were used in early radios, televisions, and computers.

Explanation

Fifth Generation computers focus on Artificial Intelligence (AI), robotics, and advanced computing.

Humanoid robots, which can mimic human actions and thinking, are a product of this generation.

Explanation

A pixel (picture element) is the smallest unit of a digital image.

Higher pixel count = Sharper image (e.g., 4K resolution has 3840×2160 pixels).

Explanation

RAM (Random Access Memory) is the computer’s temporary storage used while processing data and running programs.

It is volatile memory, meaning its contents are lost when the computer is turned off.

Explanation

ISP stands for Internet Service Provider — a company that provides access to the Internet.

Examples include PTCL, StormFiber, and Nayatel.

Explanation

A Table is a collection of related records in a database.

It organizes data into rows and columns, where each row represents a record, and each column represents a field or attribute.

Unlike a file, which is a collection of data without any inherent structure, a table in a database is designed to store structured and related information.

A table is a fundamental component of a relational database, providing a systematic way to organize and manage data.

Explanation

In the client/server model, one computer (server) provides services or resources to another (client).

This is a common architecture in networks and distributed systems.