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Differences between Analog and Digital Video - Coggle Diagram
Differences between Analog and Digital Video
Analog
is a wave that is recorded or used in its original form. eg: in an analog tape recorder, a signal is taken straight from the microphone and laid onto tape. The wave, so, therefore, the wave on the tape is analog as well
Signal
Analog
Analog signal is a continuous signal which represents physical measurements.
Digital
Digital signals are discrete time signals generated by digital modulation.
Representation
Analog
Uses continuous range of values to represent information.
Digital
Uses discrete or discontinuous values to represent information.
Waves
Digital
Denoted by square waves
Analog
Denoted by sine waves
Digital video
is a type of digital recording systems that works by using a digital rather than an analog video signal.
Example
Analog
Human voice in air, analog electronic devices.
Digital
Computers, CDs, DVDs, and other digital electronic devices.
Technology
Analog
Analog technology records waveforms as they are.
Digital
Samples analog waveforms into a limited set of numbers and records them.
Memory
Analog
Stored in the form of wave signal
Digital
Stored in the form of binary bit
Cost
Analog
Low cost and portable
Digital
Cost is high and not easily portable