
2.2 Digital Data: Bits, Bytes, and Codes
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ously. An analog clock presents time through the continuous movements of its hands
(Figure 2.1).
Traditionally, images and sounds were created
and delivered in analog form. Paintings and photo-
graphs were comprised of continuous areas of color,
and music was produced through analog motions of
strings, reeds, and other devices. But analog media
cannot be directly created, edited, or distributed by a
digital computer. To take advantage of the power of
the computer, multimedia data must be digital.
2.2 Digital Data: Bits, Bytes, and Codes
Digital information starts with digital data, and ...