ZyXEL Communications P630M - Manual (Page 48)

Prestige 630 ADSL USB Modem
F Glossary
Cable
SUA Single User Account. The Prestige's SUA (Single User Account) feature allows multiple user
Internet access for the cost of a single ISP account - see also NAT.
TCP Transmission Control Protocol handles flow control and packet recovery and IP providing
basic addressing and packet-forwarding services.
Telnet Telnet is the login and terminal emulation protocol common on the Internet and in UNIX
environments. It operates over TCP/IP networks. Its primary function is to allow users to log
into remote host systems.
Terminal A device that allows you to send commands to a computer somewhere else. At a minimum,
this usually means a keyboard and a display screen and some simple circuitry.
Terminal
Software Software that pretends to be (emulates) a physical terminal and allows you to type commands
to a computer somewhere else.
TFTP Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP (File Transfer
Protocol), but it is scaled back in functionality so that it requires fewer resources to run. TFTP
uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control Protocol).
UDP User Datagram Protocol. UDP is a connectionless transport service that dispenses with the
reliability services provided by TCP. UDP gives applications a direct interface with IP and the
ability to address a particular application process running on a host via a port number without
setting up a connection session.
URL Uniform Resource Locator. URL is an object on the Internet or an intranet that resides on a
host system. Objects include directories and an assortment of file types, including text files,
graphics, video, and audio. A URL is the address of an object that is normally typed in the
Address field of a Web browser. The URL is basically a pointer to the location of an object.
USB Universal Serial Bus is an external bus interface that supports up to 12 Mbps. USB features
Plug and Play operability that auto-detects new devices (hardware). USB eliminates many of
the problems associated with (physically) opening your computer to install adapter cards,
change dip switches and configure IRQs (Interrupt Requests). With USB, up to 63 devices
can be added to the port at any time without rebooting your computer (via hub).
VCI Virtual Channel Identifier. Identifies virtual channels between users or between users and
networks.
VPI Virtual Path Identifier. Identifies virtual paths between users or between users and networks.
WAN Wide Area Networks link geographically dispersed offices in other cities or around the globe.
Just about any long-distance communication medium can serve as a WAN link, including
switched and permanent telephone circuits, terrestrial radio systems, and satellite systems.
WWW World Wide Web. Frequently used (incorrectly) when referring to "The Internet", WWW has