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Cyber Security
Unit
Goal Glimpse
What is a Network? Different Types of Networks
What is Internet? Various terms Related to Internet
What is Spam? What is Malware?
Antivirus Protecting your Data on Internet
Firewall Cyber Security
What is Cybercrime? Netiquettes
Cyber Law
In today's world, we rely on the Internet for many of our daily tasks. It plays a big role in how
we talk to others, find information, and interact with the world around us. The Internet provides
us with ways to learn, stay informed about the news, enjoy entertainment, and use useful online
tools. This unit will help us understand networks and their basics. We will also learn about the
Internet, its key terms, and how to keep our information secure, so we can make smart decisions
in our growing digital world.
WHAT IS A NETWORK?
A computer network is a group of connected
computers and devices that allow people to
easily communicate and share files, software,
resources, and information. Each computer in
the network is called a node. These computers
can be connected using cables, hubs, switches,
network cards (NIC), modems, or routers.
Need for Networking
Networking the computers is becoming a basic need of today’s world. Some of the main reasons
to connect the devices into networking are:
Sharing Resources: The main purpose of computer networks is to share things like printers,
scanners, and modems. This helps use equipment more efficiently and avoids buying extra
ones. For example, many computers can use one printer.
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