Related Words

External Device: A peripheral or device that is installed outside of the computer system.

Internal Device: Any device installed inside a computer case or chassis.

Handheld Device Markup Language (HDML): A specialized version of HTML designed to enable wireless pagers, cell phones and other handheld devices to obtain information from Web pages. HDML was developed by Phone.com (formerly Unwir . . . View Full Definition

Charge Coupled Device (CCD): One of the two main types of image sensors used in digital cameras. When a picture is taken, the CCD is struck by light coming through the camera's lens. Each of the thousands or millions of . . . View Full Definition

External Modem: A modem that is separate from the actual computer system and is self-contained in its own box. Because of the additional expense of creating the housing for the external modem, they tend to . . . View Full Definition

External Obsolescence: A type of incurable depreciation caused by negative factors not on the subject property, such as environmental, social or ecomomic forces. The loss in value can not be reversed by spending m . . . View Full Definition

Motion-Caption Device: A system by which the movement of three-dimensional objects or humans is traced by a computer.

Open Externally-Ventilated Machine: A machine which is ventilated with external air by means of a separate motor-driven blower mounted on machine enclosure.

Thermocouple-Thermal Detection Device: A temperature detecting device made of two dissimilar metals which generate a voltage as a function of temperature. Thermocouples can be attached to a meter or alarm to detect overheating of . . . View Full Definition

Virtual Device Driver (VDD): In Windows systems, a special type of device driver that has direct access to the operating system kernel. This allows them to interact with system and hardware resources at a very low level . . . View Full Definition