density
How tightly information is packed together on a storage medium (tape or disk). A higher density means that data are closer together, so the medium can hold more information. Floppy disks can be single-density, double-density, high-density, or extra-high-density. To use a double-density, high-density, or extra-high-density disk, you must have a disk drive that supports the density level. Density, therefore, can refer both to the media and the device.
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- deprecated
(adj.) Used typically in reference to a computer language to mean a command or statement in the language that is going to be made invalid or obsolete in future versions.
- depth of field
Abbreviated as DOF, depth of field is a unit of measurement that represents the range of distances within an image where the focus is acceptably sharp.
- derived class
A class that was created based on a previously existing class (i.e., base class). A derived class inherits all of the member variables and methods of the base class from which it is derived. Also called a derived type.
- derivative work right
The right to alter content, take extracts from it, combine it with another work, translate it into another language, or otherwise create a new work from an existing piece of content.
- derived works
Derived or derivative works refers to any work that is based upon one or more existing works. In Open Source licensing, the license must allow modifications and derived works to be distributed under the same terms as the license of the original software.