Common network devices include computers (whether PCS or servers), hubs, switches, Bridges, routers, gateways, network interface cards (NICS), wireless access points (WAP), printers and modems, fiber transceivers, and optical cables.
Network devices and components are physical entities connected to a network. The variety of network devices is increasing. Whether it is a LOCAL area network (LAN), metropolitan area network (MAN) or wide area network (WAN), it usually consists of network connection devices and transmission media, such as network adapters, hubs, switches, routers, network cables, and RJ45 connectors. Network devices include repeater, bridge, router, gateway, firewall, switch and other devices.
The server is the most important device on a computer network. A server is a device that runs application software to share information resources and services for users on the network. The composition of the server is basically similar to that of the computer, including processor, hard disk, memory, system bus, etc., but the server is specially formulated for specific network applications, so there are great differences between the server and the computer in processing capacity, stability, reliability, security, scalability, manageability and other aspects. Typically, the server has more processing power, more memory, and more disk space than the client. The network operating system on the server can manage not only data on the network, but also users, user groups, security and applications.