The document explains the differences between analog and digital signals, noting that analog signals represent continuous time-varying quantities and are specific, with lower accuracy compared to digital signals. Digital signals, on the other hand, are comprised of discrete values (0s and 1s), allowing for more efficient processing and greater versatility. Overall, digital signals outperform analog signals in accuracy and reliability.

2. The term Analog is a taken from “Greek” word
“analogos”. Analog signals are a representation of time
varying quantities in a continuous signal. Analog signals
work with natural phenomena and physical values like
frequency, earthquake, volcano, flow of water, speed of
wind, weight, lighting etc.

4. Analog Device for Measuring Earthquakes

6.  It works on continuous data.
 It is used to measure natural or physical values.
 It is specific to a particular task. Hence it is not
versatile.
 Accuracy of analog signal is not high in comparison
of digital signal.
 Analog signal output form is like Curve, Line or
Graph, so it may not be meaningful to all.

7. The Digital signal having a discrete set of values.
Digital signals are a series of ONs and OFFs
(represented by 1s and 0s). These can be voltages
going from a high (one) value to a low (zero) value
or flashes of light. It is usually encoded into binary in
order to carry out the information.

9. General purpose computer is best example
of digital signal system based computer.

10.  Digital Signal are continuous signals
 Digital signal based on binary form 0’s and 1’s
 Digital signal can be processed and
transmitted more efficiently and reliable than
analog signal.
 Digital signal are versatile, we can use digital
signals widely than analog signals
 Accuracy of digital signal is higher than that
of analog signal