What is Network?

A network is a group of two or more devices or nodes that can communicate. The devices or nodes can be connected by physical or wireless connections.

A network can be a collection of computers and other devices that are linked together to exchange data. Each device on the network is referred to as a node, and each node has its own address, which is a numerical value.

A network can also be a group of two or more computers or other electronic devices that are interconnected for the purpose of exchanging data and sharing resources.

There are two basic network types:

Local-area networks (LANs): Connect computers and peripheral devices in a limited physical area, such as a business office, laboratory, or college campus.

Wide-area networks (WANs): An enterprise network spanning buildings, cities, and even countries.

Some other types of networks are:

1.) Internet: The global network that connects millions of smaller networks worldwide. The Internet uses the TCP/IP (Transmission Control Protocol/Internet Protocol) suite for communication.

2.) Wireless Networks: Networks that use wireless communication technologies, such as Wi-Fi, Bluetooth, or cellular networks, to connect devices without the need for physical cables.

3.) Intranet: A private network within an organization that uses Internet technologies to share information, collaboration tools, and other resources among its members.

4.) Extranet: A controlled private network that allows organizations to share information and collaborate with selected external partners or customers.

5.) Virtual Private Network (VPN): A secure network that uses encryption and tunneling protocols to provide a private and secure connection over a public network, such as the Internet.