+**Analog** refers to a form of [signal](/wiki/signal) or data representation where a physical quantity is represented by another physical quantity that varies continuously. It mirrors the smooth, unbroken flow of the natural world, unlike [Digital](/wiki/digital) systems which use discrete steps. This continuous nature allows for direct, nuanced representation of physical phenomena.
+## See also
+- [Digital](/wiki/digital)
+- [Signal](/wiki/signal)
+- [Sensor](/wiki/sensor)
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