(1) Data in binary form. See
digital format and
binary.
(2) Years ago, Digital Equipment Corporation was commonly referred to as simply "Digital." See
Digital Equipment.
(3) For centuries, digital meant the use of numbers, the term coming from digit, or finger. Today, digital is synonymous with computer and Internet activities. See
virtual.
Digital Also Means Perfect
Digital methods caused a worldwide revolution in every facet of life. The 0s and 1s of digital data mean more than just on and off. They mean perfect copying and preservation. When information, music, voice and video are turned into binary digital form, they can be electronically manipulated, preserved and regenerated perfectly at high speed. The millionth copy of a computer file is identical to the original. While this has driven software and content publishers to distraction protecting their copyrights, it is nevertheless a significant advantage of digital processing.
Every day, petabytes of data are uploaded to and downloaded from the Internet. Although errors do occur in transmission, they are detected and corrective measures are taken automatically by the communications systems. The exceptions are conferencing, both audio and video, whereby errors are accepted because retransmitting packets would alter the real-time experience. See
petabyte,
binary and
error checking.
Digital Means No Physical Media
Movies Anywhere allows people to stream content they have purchased from various sources. In this example, digital implies streaming over the Internet in contrast to receiving a physical disc.