Digital Signal:
A Signal (Voltage or Current) that can have only two discrete values is called a digital signal. A square wave is a digital signal because this signal has only two values. +5V and OV and no other value.
A Signal (Voltage or Current) that can have only two discrete values is called a digital signal. A square wave is a digital signal because this signal has only two values. +5V and OV and no other value.