Wire World Of America 1800 manual 139

U

UDP. See User Datagram Protocol.

Uniform Resource Locator (URL). A text-based address used to identify specific resources on the Internet, such as web pages. URLs are arranged in a hierarchical form that specifies the name of the server on which a resource is located (such as www.bt.com) and the name of the file on that server (www.bt.com/ index.html).

Universal Serial Bus (USB). A computer interface used for connecting computer peripherals such as printers, keyboards and scanners.

URL. See Uniform Resource Locator.

USB. See Universal Serial Bus.

User Datagram Protocol. A TCP/IP protocol describing how data packets reach application programs within a destination computer.

V

Variable Bit Rate (VBR). A data transmission that can be represented by an irregular grouping of bits or cell payloads followed by unused bits or cell payloads.

VDSL. See Very High Bit-rate Digital Subscriber Line.

Very High Bit-rate Digital Subscriber Line (VDSL). A type of asymmetric DSL that delivers from 13 to 52 Megabits per second downstream bandwidth and 1.5 to 2.3 Megabits per second upstream.

Video on Demand (VOD). A pay-per-view television service in which a viewer can order a program from a menu and have it delivered instantly to the television set, typically with the ability to pause, rewind, etc.

Virtual Reality Markup Language (VRML). A computer language that provides a three-dimensional environment for traditional Internet browsers, resulting in a simple form of virtual reality available over the Internet.

VOD. See Video on Demand.

VRML. See Virtual Reality Markup Language.

W

WAN. See Wide Area Network.

Wide Area Network (WAN). A network that interconnects geographically-distributed computers or local area networks.

Wireless. Transmission of data over radio waves rather than wiring. For more information on wireless, visit the Local Networking Resource Center.

Wireless Node. A user computer with a wireless network interface card.

X

xDSL. See DSL.

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