Analog and Digital


The following table highlights the basic differences between analog and digital −

Analog Digital
Its functions on physical analog system. It functions on discrete numbers system.
The calculations in this system are primarily converted to equations and later converted into electrical signals. The calculations in this system are converted into binary numbers (i.e., 1s and 0s).
To function, it requires physical analog. To function, it requires discrete numbers.
It gives output in the form of ‘graph’. It gives output in the form of discrete values.
Accuracy comparatively is less. Accuracy is very high.
Performs at a low speed. It performs at a very high speed.
Difficult to make changes, as it is less flexible. It is highly flexible.
It has memory of low capacity. It has memory of high capacity.
Its application is limited to certain applications. Its application is applicable to a number of applications.
It is hardly applicable for the business applications. It is very much suitable for the business applications.
It cannot process alpha-numeric data. It can process alpha-numeric data.
It requires RF technology. It requires IP networking.
Static channel assignment. Automatic channels exist as required.

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