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we often confuse our-self with continuous time and analog signals.

An analog signal is a signal which can take any amplitude in continuous

range that is signal amplitude can take infinite values on the other hand

a digital signal is one whose amplitude can take only finite numbers of values

THE TERM CONTINUOUS SIGNAL AND DISCRETE SIGNAL CLASSIFY THE SIGNALS

ALONG THE TIME (i.e. horizontal axis) where as THE TERM ANALOG AND DIGITAL

SIGNAL CLASSIFY THE SIGNAL ALONG THE AMPLITUDE (i.e vertical axis)

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14y ago
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14y ago

Analog TV:

Analog (or analogue) television encodes television picture and sound information and transmits it as an analog signal: one in which the message conveyed by the broadcast signal is a function of deliberate variations in the amplitude and/or frequency of the signal. All systems preceding digital television, such as NTSC, PAL or SECAM are analog television systems. Digital TV:

Digital television (DTV) is the sending and receiving of moving images and sound by discrete (digital) signals, in contrast to the analog signals used by analog TV.

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Q: What is digital and analog?
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