What is a network?

A computer network is a system that allows multiple computers to connect and communicate with each other, enabling the sharing of resources and information. It is like a digital web that connects devices, such as computers, servers, routers, and switches, to facilitate data transmission and communication.

There are several types of computer networks, each serving different purposes.

Local Area Network (LAN) is the most common type, usually used within a small geographic area, such as an office or a home.

Wide Area Network (WAN) covers a larger area and connects multiple LANs together, often over long distances.

Metropolitan Area Network (MAN) is similar to a WAN but covers a city or a metropolitan area.

Another type is the Campus Area Network (CAN), which interconnects LANs within a university or corporate campus. Lastly, there is the Personal Area Network (PAN), which connects devices within a person's immediate surroundings, like Bluetooth connections between a smartphone and a smartwatch. Each type of network has different characteristics and is designed to meet specific needs, allowing for efficient communication and resource sharing among connected devices.