Wide Area Network

Wide Area Networks (WANs) connect larger geographic areas, such as Florida, the United States, or the world. Dedicated transoceanic cabling or satellite uplinks may be used to connect this type of network.

Networking Devices

Consist of, but are not limited to non-local printers, workstations, servers, webcams, data loggers, instruments, dial-in devices, and, in general anything that requires an Ethernet connection. These devices are supported on a best-effort basis limited by the staffing and equipment level available.

Hub

Is a small, simple, inexpensive device that joins multiple computers together. Many network hubs available today support the Ethernet standard. Other types including USB hubs also exist, but Ethernet is the type traditionally used in home networking.

Ethernet switch

Is a device that gathers the signals from devices that are connected to it, and then regenerates a new copy of each signal.

Bridge

Is a device filters data traffic at a network boundary. Bridges reduce the amount of traffic on a LAN by dividing it into two segments.

Routers

Are small physical devices that join multiple networks together.

Network gateway

Is an internetworking system capable of joining together two networks that use different base protocols. A network gateway can be implemented completely in software, completely in hardware, or as a combination of both.

Modem

Is a contraction of the terms modulator and demodulator. Modems perform a simple function: They translate digital signals from a computer into analog signals that can travel across conventional phone lines. The modem modulates the signal at the sending end and demodulates at the receiving end.

Network interface

Is a device that connects a client computer, server, printer or other component to your network. Most often, a network interface consists of a small electronic circuit board that is inserted into a slot inside a computer or printer. Alternatively, some computers, printers, or other services include network interfaces as part of their main circuit boards (motherboards).

Network firewall

Protects a computer network from unauthorized access. Network firewalls may be hardware devices, software programs, or a combination of the two. Network firewalls guard an internal computer network (home, school, business intranet) against malicious access from the outside. Network firewalls may also be configured to limit access to the outside from internal users.

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