Digital

A digital signal is an alternative method of transmitting data, instead of an analog signal. A digital signal is a series of high and low voltages that corresponds to 1's and 0's that encodes the necessary information.

A digital signal is advantageous over an analog signal in that it is less susceptible to electrical noise/interference.

The main difference between analog data and digital is that analog is infinitely variable while digital signals can have only a finite number of binary digits or bits.