A computer network is a system that allows multiple computers to communicate and share resources with each other. This can be done through wired or wireless connections, such as Ethernet cables or Wi-Fi.
Computer networks can range in size from small local area networks (LANs) within a single building or campus, to wide area networks (WANs) that span across cities or even countries. Networks can also be classified based on their purpose, such as home networks for personal use, or enterprise networks for businesses.
The main purpose of a computer network is to facilitate communication and resource sharing between devices. This can include sharing files, printers, internet connections, and other resources. Networks also enable collaboration and allow users to access information and services from remote locations.
Overall, computer networks play a crucial role in modern society by enabling communication, collaboration, and resource sharing between devices and users.