Glossary of Terms

T-1
A leased line connection capable of carrying data at 1,544,000 bits-per-second. At maximum theoretical capacity, a T-1 line could move a megabyte in less than 10 seconds. That is still not fast enough for full-screen, full-motion video, for which you need at least 10,000,000 bits-per-second. T-1 is the fastest speed commonly used to connect networks to the Internet.

T-3
A leased line connection capable of carrying data at 44,736,000 bits-per-second. This is more than enough to do full-screen, full-motion video.

Tag
A tag is used to describe a type of command or instruction usually in regards to HTML or Web page code. HTML tags look like this: , , or , always with a pair of brackets (<>) surrounding the specific instruction.

TCP/IP
Transmission Control - This set of protocols makes TELNET, FTP, email, and other services possible among computers that don't belong to the same network.

Telnet
An Internet program for connecting to a remote host or server. The Telnet interface is text-based and a user usually has to enter their login name and password before gaining access to the system. Some of the things that can be done with Telnet access include checking email, downloading programs and chatting with other Telnet users. It is one of the oldest Internet activities and is primarily used to access online databases or to read articles stored on university servers. It is also possible to Telnet via your Web browser by changing the http:// to telnet:// and entering in the site's address.

Terabyte
1000 Gigabytes

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. Usually you will use terminal software in a personal computer - the software pretends to be ("emulates") a physical terminal and allows you to type commands to a computer somewhere else.

Terminal Server
A special-purpose computer with places to plug in many modems on one side and with a connection to a LAN or host machine on the other side. The terminal server answers calls and passes the connections on to the appropriate node. Most terminal servers can provide PPP or SLIP services if connected to the Internet.

Traceroute
A traceroute is the process of viewing the Internet connection route that takes place between two machines. When a machine, or computer, is connecting to another computer, the connection may span over several routers. If one of those routers is down, then Internet Connection cannot be established. Doing a traceroute enables you to see which router is causing the problem. Command line syntax. tracert