Digital Zoom: The ability to magnify an optical image digitally, using interpolation. Digital cameras can come with quite high levels of digital zoom, but the image quality suffers noticeably as more digital zoom is applied. (Generally, you'll want to stick to optical zoom to ensure a crisp, detailed photo.).

 

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Digital Zoom: The ability to magnify an optical image digitally, using interpolation. Digital cameras can come with quite high levels of digital zoom, but the image quality suffers noticeably as more digi . . . View Full Definition

Optical Zoom: The ability to magnify a subject for close-ups, by adjusting the camera's lens assembly (thus the name 'optical'). Most current digital cameras include an optical zoom lens of some kind. The . . . View Full Definition

Integrated Digital Services Network (ISDN): ISDN lines are high-speed dial-up connections to the Internet. That's good. What's bad is that their cost and availability is determined by local telephone companies, which means in some pla . . . View Full Definition

Integrated Services Digital Network (ISDN): Basically a way to move more data over regular existing phone lines. ISDN is available to much of the USA and in most markets it is priced very comparably to standard analog phone circuits. . . . View Full Definition

Musical Instrument Digital Interface (MIDI): An interface as well as file format standard for using a musical instrument with a computer and recording and storing the data from it. A MIDI file contains information about recorded notes: . . . View Full Definition

Integrated Digital Enhanced Network (iDEN): A wireless communications technology from Motorola that provides support for voice, data, short messages (SMS) and dispatch radio (two-way radio) in one phone. Operating in the 800MHz and 1. . . . View Full Definition

Dolby Digital: Dolby's name for its format for the digital soundtrack system for motion picture playback. Utilizes their AC-3 method of digital compression. The signal is optically printed between the spro . . . View Full Definition

Digital Video Interactive (DVI): A standard that integrates digital motion, still video, sound, graphics, and special effects in a compressed format. It is a highly sophisticated hardware compression technique used in many . . . View Full Definition

Digital Video Recorder (DVR): Refers to “digital video recorder,” also known as “personal video recorder.” A DVR or PVR records broadcasts on a hard disk drive which can then be played back at a later time (this is known . . . View Full Definition

Direct Digital Signal (DDS): Stands for Direct Digital Signal. It refers to a network that uses digital infrastructure equipment exclusively. This eliminates the need for analog-to-digital converters on a network becaus . . . View Full Definition