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Tag
In HTML terms, a 'tag' is used for marking-up text in various ways so that it is formatted in a Web document. They are sometimes called 'Markup Tags'.
See Also:HTML

T-1
Network link used on the Internet allowing speeds of up to 1.54 megabits/second.

T-3
Higher speed (45 megabits/second) Network link used on the Internet.

TCP/IP
(Transmission Control Protocol) works in conjunction with IP (Internet Protocol) to ensure that packets reach their intended destinations.
See Also:IP

Telnet
(Obsolete) Terminal emulation protocol allowing an authorised user to access another computer on the Internet and use that computer as if it were local (when in reality it could be several thousand miles away). Nowadays, Secure Shell (SSH) should be used in its place, as Telnet is deemed a very insecure protocol.
See Also:Protocol

Terabyte
1000 gigabytes
See Also:Byte, Kilobyte, Gigabyte

Terminal
Piece of hardware that allows commands to be sent to a computer, usually by means of a Keyboard, Mouse and Monitor.

Terminal Emulator
Piece of Software which allows a PC to emulate several terminal types.

Thread
In a Usenet group, this is a list of messages loosely relating to one another (using the same 'thread').

Timeout
The facility whereby after a certain period of inactivity the connection is dropped.

Toolbar
The row of icons (normally at the top of your window) that depict services and actions that are activated by clicking on them.

Twisted Pair
Telephone system cabling that consists of copper wires loosely twisted around each other.

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