digitize
To translate into a digital form. For example, optical scanners digitize images by translating them into bit maps. It is also possible to digitize sound, video, and any type of movement. In all these cases, digitization is performed by sampling at discrete intervals. To digitize sound, for example, a device measures a sound wave’s amplitude many times per second. These numeric values can then be recorded digitally.
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- digitizing tablet
An input device that enables you to enter drawings and sketches into a computer. A digitizing tablet consists of an electronic tablet and a cursor or pen. A cursor (also called a puck) is similar to a mouse, except that it has a window with cross hairs for pinpoint placement, and it can have as […]
- Deadlock
A condition that occurs when two processes are each waiting for the other to complete before proceeding. The result is that both processes hang. Deadlocks occur most commonly in multitasking and client/server environments. Ideally, the programs that are deadlocked, or the operating system, should resolve the deadlock, but this doesn’t always happen. A deadlock is […]
- dead tree edition
Slang term used to describe any publication in its printed form when the same publication is available in a paperless version online. In hacker slang terminology, any printed manual or documentation that is freely available online is called treeware.
- dingbat
)A small picture, such as a star or a pointing finger, that can be inserted into a document. Many sets of dingbats are available as a special font. One of the most popular is Zapf dingbats, named after its creator, Hermann Zapf.
- diode
An electric component that conducts electric current in only one direction, functioning as a one-way valve. Diodes typically are made from semiconductor materials such as silicon, germanium or selenium and are uses as voltage regulators, signal rectifiers, oscillators and signal modulators/demodulators. In computer equipment, diodes are commonly used to emit light by passing a current […]