Differentiate between Analog and Digital Signals

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## Differentiate between Analog and Digital Signals?

analog signal and digital signals

By:pallaviaithaln

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Analog signal
is any continuous signal for which the time varying feature (variable) of
the signal
is a representation of some other time varying quantity, i.e., analogous to another
time varying signal. It differs from a digital signal in terms of small fluctuations in the
signal which are meaningful.
A
digital signal
uses discrete (discontinuous) va
lues. By contrast, non
-
digital (or analog)
systems use a continuous range of values to represent information. Although digital
representations are discrete, the information represented can be either discrete, such as
numbers or letters, or continuous, such
as
sounds
, images, and other measurements of
continuous systems
Logic Design 10CS33
Dept. of CSE, SJBIT
Page
9
Analog
Digital
Technology:
Analog technology records waveforms
as they are.
Converts analog waveforms into set of
numbers and records them. The
numbers are converted
into voltage
stream for representation.
Representation:
Uses continuous range of values to
represent information.
Uses discrete or discontinuous values
to represent information.
Uses:
Can be used in various
computing
platforms and under operating systems
like Linux, Unix, Mac OS and
Windows.
Computing and electronics
Signal:
Analog signal is a continuous signal
which transmits information as a
response to changes in physical
phenomenon.
Digital signals are discrete t
ime signals
generated
by digital modulation.
Clocks:
Analog clocks indicate time using
angles.
Digital clocks use numeric
representation to indicate time.
Computer:
Analog
computer uses
changeable
continuous physical phenomena such as
electrical, mechanical, hydraulic
quantities so as to solve a problem.
Digital computers represent changing
quantities incrementally as and when
their values change.

pallaviaithaln

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