A monitor that accepts digital rather than analog signals. All monitors (except flat-panel displays) use CRT technology, which is essentially analog. The term digital, therefore, refers only to the type of input received from the video adapter. A digital monitor then translates the digital signals into analog signals that control the actual display.
Although digital monitors are fast and produce clear images, they cannot display continuously variable colors. Consequently, only low-quality video standards, such as MDA , CGA , and EGA , specify digital signals. VGA and SVGA, on the other hand, require an analog monitor. Some monitors are capable of accepting either analog or digital signals.
- digital phone
Digital phone services are offered through local phone companies, cable companies and broadband Internet service providers, typically as part of a bundled package with cable television, high-speed Internet access and in some cases cellular telephone service. The digital phone services offered by these providers are actually just re-branded Voice over Internet Protocol, or VoIP, Internet […]
- digital photo effects
Many graphics and image-editing programs offer image effects specifically for digital photos. These types of effects are used to remove problems that can appear in your original digital photograph such as various lens corrections (pincushion or fisheye) and red-eye removal tools.
- digital satellite system
Abbreviated DSS, a network of satellites that broadcast digital data. An example of a DSS is DirecTV, which broadcasts digital television signals. DSS’s are expected to become more important as the TV and computer converge into a single medium for information and entertainment.
- digital photography
Digital photography is the art and science of producing and manipulating digital photographs — photographs that are represented as bit maps. Digital photographs can be produced in a number of ways: Directly with a digital camera By capturing a frame from a video By scanning a conventional photograph Once a photograph is in digital format, […]
- digital signature
A digital code that can be attached to an electronically transmitted message that uniquely identifies the sender. Like a written signature, the purpose of a digital signature is to guarantee that the individual sending the message really is who he or she claims to be. Digital signatures are especially important for electronic commerce and are […]