Some digital camera manufactures advertise a camera’s zoom capability as a total zoom. When you see a total zoom listing, it is the digital zoom multiplied by the optical zoom. For instance, a camera touting a 20x total zoom could be a digital camera with 4x optical and 5x digital zoom.
- touch screen
A type of display screen that has a touch-sensitive transparent panel covering the screen. Instead of using a pointing device such as a mouse or light pen, you can use your finger to point directly to objects on the screen. Although touch screens provide a natural interface for computer novices, they are unsatisfactory for most […]
A small, touch-sensitive pad used as a pointing device on some portable computers. By moving a finger or other object along the pad, you can move the pointer on the display screen. And you click by tapping the pad.
A type of electronic display that senses physical touch by a person’s hands or fingers, or by a device such as a stylus, and then performs actions based on the location of the touch as well as the number of touches. A touchscreen display is useful for interacting directly with a computer or electronic device, […]
- tower model
)Refers to a computer in which the power supply, motherboard, and mass storage devices are stacked on top of each other in a cabinet. This is in contrast to desktop models, in which these components are housed in a more compact box. The main advantage of tower models is that there are fewer space constraints, […]
- trace cache
(trās kash) (n.) An instruction cache in a microprocessor that stores dynamic instruction sequences after they have been fetched and executed in order to follow the instructions at subsequent times without needing to return to the regular cache or the memory for the same instruction sequence. An advantage of the trace cache is it reduces […]