PortsGenerally speaking, the point at which a device connects to the network so that data can pass through. The simplest example of a port is the point where you plug your telephone into the wall. Node Any computer, printer, modem, fax machine or any other device connected to the network. A network operating system is required for every network. It allows computers and other connected devices to send and receive information.
Network operating system software can range from simple to more robust.
Client-server configurations require more sophisticated network operating systems like Novell NetWare or Windows NT Server. Every desktop or notebook computer on your network needs a network interface card. They are available for notebook and desktop computers. Ethernet network interface cards are plugged into your computer's expansion slot. They are available in ISA, EISA, MCA and PCI configurations.