General concept of network?

A network is a group of interconnected devices or systems that are able to communicate and share resources with each other. This can include computers, servers, routers, switches, and other hardware devices. Networks can be local, such as a home or office network, or global, such as the internet. The purpose of a network is to facilitate communication and collaboration between devices, allowing them to share information, access shared resources, and work together to achieve common goals. Networks can be wired or wireless, and can be configured in various topologies, such as star, bus, ring, or mesh.