Glossary

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 T1 Connection

A T1 line is a high-speed physical connection capable of transmitting data at a rate of 1.5 million bps (bits per second). A T1 line represents bandwidth equal to about 24 voice telephone lines, which is usually sufficient for a small server (FTP, Web, or Audio/Video). Most Internet Service Providers will usually have multiple T1 and/or T3 lines providing service to their customers.

 T3 Connection

A T3 line (also referred to as a DS3) is a super high-speed connection capable of transmitting data at a rate of 45 million bps (bits per second). A T3 line represents bandwidth equal to about 672 voice telephone lines, which is wide enough to transmit full-motion, real-time video, and very large databases over a busy network. A T3 line is typically installed as a major networking artery for large corporations and universities with high-volume network traffic. For example, the backbones of the major Internet service providers are comprised of T3 lines.

 TCP/IP

TCP/IP stands for Transmission Control Protocol/Internet Protocol, the language governing communications between all computers on the Internet. TCP/IP is a set of instructions that dictates how packets of information are sent across multiple networks. It also includes a built-in error-checking capability to ensure that data packets arrive at their final destination in the proper order. IP, or Internet Protocol, is the specification that determines where packets are routed to, based on their destination address. TCP, or Transmission Control Protocol, makes sure that the packets arrive correctly at their destination address. If TCP determines that a packet was not received, it will try to resend the packet until it is received properly. You must be running TCP/IP to have full Internet access. In UNIX, TCP/IP is a part of the operating system. In the DOS and Windows world, the functionality of TCP/IP is handled by WinSock. This piece of software takes care of your TCP/IP configuration information.

 Tags

Tags are descriptive formatting codes used in HTML documents that instruct a web browser how to display text and graphics on a web page.

 Telnet

Telnet is a software program that allows you to log in to other remote computers on the Internet to which you have access. Once you are logged into the remote system, you can download files, engage in conferencing, and perform the same commands as if you were directly connected by computer. You need an Internet account to be able to use a telnet program.

 Thread

A thread is a series of related newsgroups, BBS, or e-mail messages on a given subject, including the original message and the subsequent replies.

 Trace Route

A trace route shows the path that your computer takes over the Internet to get to the desired website.

 Transfer Rate

The speed with which data can be transmitted from one device to another. Data rates are often measured in megabits (million bits) or megabytes (million bytes) per second. These are usually abbreviated as Mbps and MBps, respectively.