Explanation

ISDN (Integrated Services Digital Network) is a circuit-switched telephone network system that transmits both data and voice over a digital line.

Additional Points:

• Modem: Converts digital signals to analog for internet access.
• HTTP/HTTPS: Protocols specifically designed for accessing web pages.
• TCP: Works alongside UDP but is more reliable for web communications.

Explanation

Binary numbers are made up of only two digits: 0 and 1.

Only 1001 consists solely of 0s and 1s, making it a binary number.

Explanation

Comments can be added to cells using Insert > Comment.

Explanation

Explanation

• In MS Word, a master document contains links (or sometimes referred to as pointers/files) of subdocuments. 
• When the master document is saved, each subdocument is saved as a separate file

Last updated by NS on 06 May 2026

Explanation

Robotics uses information systems to design, build, and operate robots that automate tasks.

Robotics enables activities to be done cheaper, faster, more accurately, and consistently, improving efficiency and productivity.

Explanation

HTML (Hypertext Markup Language) is the standard markup language used to create web pages and display content on the internet.

It is the most widely used language on the web.

It is the backbone of a website's structure and content.

Explanation

Bus: a high-speed internal connection.

A bus is an electronic path that sends signals from one part of a computer to another.

It allowing different components to communicate with each other.

Explanation

WAP (Wireless Application Protocol) is specifically designed to enable wireless access to the internet, services, and applications through mobile devices.

Explanation

A computer can perform any task that can be broken down into a series of logical, step-by-step instructions.

This is because computers process tasks by following a series of instructions or steps.