An organization that provides access to the Internet. Customers are generally billed a fixed rate per month, but other charges may apply. For a fee, a Web site can be created and maintained on the ISP's server, allowing the smaller organization to have a presence on the Web with its own domain name. A communications network that serves users within a confined geographical area. It is made up of servers, workstations, a network operating system and a communications link.
Local loops use copper-based telephone wire.
OC defines transmission by optical devices. Servers are high-speed machines that hold programs and data shared by network users. A T3 line provides 672 64-Kbps voice or data channels. T3 channels are widely used on the Internet. T-carrier lines use four wire cables.