trackball
)A pointing device. Essentially, a trackball is a mouse lying on its back. To move the pointer, you rotate the ball with your thumb, your fingers, or the palm of your hand. There are usually one to three buttons next to the ball, which you use just like mouse buttons.
The advantage of trackballs over mice is that the trackball is stationary so it does not require much space to use it. In addition, you can place a trackball on any type of surface, including your lap. For both these reasons, trackballs are popular pointing devices for portable computers.
Read Also:
- trackware
Any undesirable software program that is able to track a user’s system activity or gather system information and provide the data to a third party. Trackware does not gather any personally identifiable information.
- trademark
A name, symbol, or other device identifying a product, officially registered and legally restricted to the use of the owner or manufacturer. A trademark is used to prevent others from using identical or similar marks. Abbreviated as TM or ��.
- tractor feed
)A method of feeding paper through a printer. Tractor-feed printers have two sprocketed wheels on either side of the printer that fit into holes in the paper. As the wheels revolve, the paper is pulled through the printer. Tractor feed is also called pin feed. The other principal form of feeding paper into a printer […]
- traffic meter
A router (or Wi-Fi router) feature that will monitor the data consumption (upload and download) of all the devices on your network and notify you when you approach a predefined threshold. A traffic meter is useful if your ISP is enforcing a maximum monthly data transfer allocation (typically this is 250-GB). See What is 250 […]
- traffic
(traf´ik) (n.) (1) The load on a communications device or system. One of the principal jobs of a system administrator is to monitor traffic levels and take appropriate actions when traffic becomes heavy. (2) The measurement of the amount of users that visit a Web site.