Computer networks

The document discusses computer networking components including servers, clients, workstations, webcams, network operating systems, and how digital and analog signals are modulated and demodulated when transmitted over modems. It also describes different types of networking devices like routers, bridges, hubs, gateways, and cables like twisted pair, coaxial, fiber optics that can connect various devices wirelessly or through broadcasts. Wireless technologies like wireless LANs, hotspots, and microwave and satellite systems are also summarized for transmitting data over wide area networks.