1. Pertaining to, resembling, or using a digit or digits: Nancy's computer had a digital keyboard to write emails to her sister.
2. Resembling an impression made by a finger: A digital fingerprint was made for Sam's passport.
3. Pertaining to data in the form of discrete states as contrasted to analog data in the form of continuously variable physical quantities.

In computer science, representing or operating on data or information in numerical form.

A digital clock uses a series of changing digits to represent time at discrete intervals; for example, every second.

Modern computers rely on digital processing techniques, in which both data and the instructions for manipulating data are represented as binary numbers.

Being unable to move an individual finger when asked to do it even when there is no paralysis: "When the woman with digital apraxia was told to hold up her index finger, she couldn't do it."

Arteries in the hand and foot that supply the fingers and toes.

A reference to the reproduction and transmission of sound stored in a digital format.

This includes CDs as well as any sound files stored on a computer. In contrast, the telephone system (but not ISDN) is based on an analog representation (system that represents changing values as continuously variable physical quantities) of sound.

In sound recording and reproduction systems, digital audio refers to a digital representation of the audio waveform for processing, storage or transmission. When analog sound waves are stored in digital form, each digital audio file can be decomposed into a series of samples.

A clock that displays the time in numerical digits rather than by hands on a dial.

1. A computer that performs calculations and logical operations with quantities represented as digits, usually in the binary number system.
2. A device capable of accepting data in the form of facts and figures, manipulating them in a prescribed way, and supplying the results of these processes as meaningful information.

This device usually consists of input and output devices, storage, arithmetic and logic units, and a control unit. Usually an automatic, stored-program machine is implied.

A display that gives the information in the form of characters (numbers or letters).

The difference in opportunities available to people who have access to modern information technology and those who do not.

A term coined by former Assistant Secretary of Commerce for Telecommunication and Communication, Larry Irving, Jr., to focus public awareness on the gap in access to information resources and services between those with the means to purchase the computer hardware and software necessary to connect to the internet and low-income families and communities who cannot afford network access.

An instrument for measuring changes in volume resulting from fluctuations in the amount of blood that is applied to a digit (finger or toe) of the hand or foot in order to measure skin blood flow.

A system in which a satellite dish receives a digital signal, decodes the signal, and passes it to a television, radio receiver, or computer.

DSS's are expected to become more important as the TV and computer converge into a single medium for information and entertainment.

1. An electronic device that generates a digital representation of an image for data input to a computer.
2. An optical device that reads a printed page or transparency and converts it into a graphics image for a computer.

The scanner does not recognize, nor differentiate, in any manner the content of the material it is scanning. Everything is converted into a bitmapped image, which is a pattern of dots.

1. Specifically, an output device that produces graphic or pictorial representations of computer data on a hard copy by drawing with one or more automatically controlled pens that move in small steps as used with digital computers.
2. An automatic device used in conjunction with a digital computer to produce a graphic or pictorial representation of computer data on a hard copy.
3. A graphics printer that draws images with ink pens.

It draws point-to-point lines directly from vector graphics files.

The plotter was the first computer output device that could print graphics as well as accommodate full-size engineering and architectural drawings.

A navigational chart encoded in a computer-usable format and used, in combination with electronic devices, to produce a computer-generated video display that provides the navigator with an accurate pictorial presentation of the information normally gathered from a paper chart.

A machine that uses electronic circuitry in the main computing element to perform arithmetic and logical operations on digital data; for example, data represented by numbers or alphabetic symbols.

This is done automatically with an internally stored program of machine instructions.

Such instruments are distinguished from calculators on which the sequence of instructions is externally stored and is impressed manually (desk calculators) or from tape or cards (card-programmed calculators).