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Chapter 19 - The Internet

The world is now a global village. The Internet and other Networks have brought
people and countries much closer to one another.

What is the Internet?

The Internet is the global system of interconnected computer networks that use
the Internet Protocol Suite (TCP/IP) to link billions of devices worldwide. It is a
network of networks that consists of millions of networks of local to global

scope, linked by a broad array of electronic, wired, wireless and optical
networking technologies.

Internet is simply a global network connecting millions of computers that

communicate using wire or wireless technology. It is the largest network in the
world and it is also called the Net.

With the Internet, it's possible to access almost any information, communicate

with anyone else in the world, and do much more. You can do all of this by
connecting a computer to the Internet, which is also called going online.

Network

A Network is the collection of two or more computers and hardware components
that are linked together such that they can communicate using wire or wireless
technology.

NB:
Wired Network is a network that uses network cables or wires to
connect the computers in the network. It's also called Cable Network.

Wireless Network is a network that does not use wires or cables to
connect computers in a network. It uses wireless technologies such as
GPRS, EDGE, Wi-Fi, WiMax, HSPA, infrared and Bluetooth to
connect the computers in the network.

The Main Types of networks
International Network (Internet)
Local Area Network (LAN)