A computer communication network, often referred to simply as a network, is a system of interconnected computer devices and equipment that enables the exchange of information and resources between multiple users. It involves the transmission of data from one device to another via various network protocols, allowing for communication and sharing of resources such as files, documents, and applications.
Computer communication networks can be categorized into different types based on their scale and geographic coverage. Local Area Networks (LANs) typically connect devices within a small area, such as a home, office, or campus. Wide Area Networks (WANs) extend the connectivity over larger areas, often spanning multiple cities or countries. The Internet itself is considered a global network, connecting computers and networks worldwide.
These networks utilize both wired and wireless technology to establish connections. Wired networks use physical cables, such as Ethernet cables or fiber optics, to transmit data signals. Wireless networks, on the other hand, employ radio waves to enable devices to communicate without the need for physical connections. Network devices, such as routers, switches, and modems, act as intermediaries to manage and control the flow of data across the network.
The purpose of computer communication networks is to facilitate efficient and secure communication, data exchange, and resource sharing among users. They enable collaboration and enable individuals and organizations to access information and services from remote locations. Networks play a vital role in enabling internet connectivity, email communication, online banking, social media, and many other applications that rely on interconnectivity.
