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How can i differentiate between the two , any real time example to differentiate them based on their applications in real world ?

Thanks in advance
asked Jun 4, 2016 in Electro-Communication by techdoubt (307 points) | 86 views

1 Answer

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First let us, find what is a signal , about which we are talking.

Signals usually in electrical engineering is a function that conveys some information.

Examples of signal include :

"signal" includes audio, video, speech, image, communication, geophysical, sonar, radar, medical and musical signals

What is analog signal ?

Analog refers to circuits in which quantities / attributes (for example : such as voltage or current )  vary or change at a continuous rate.

image

Can be used in analog devices only. Best suited for audio and video transmission.

At the same time ,digital signals :

In digital electronics, quantities are counted rather than measured.

image

Best suited for Computing and digital electronics.

answered Aug 25, 2016 by transformer (235 points)
edited Aug 25, 2016 by transformer