T
TCP/IP

Transmission Control Protocol/Internet Protocol, used to make connections on the Internet.

Terminal

An application that lets you use Mac OS X's command-line interface.

title bar

The top border of a window, which contains its name.

trackball

A pointing device that consists of a ball held in a stationary base.

trackpad

A pointing device. The user moves the pointer by dragging a finger across the surface of the trackpad.

Trash

The holding area for items you want to delete from your computer.

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