Answer:
A digital quantity will have a value that is specified as one of two
possibilities such as 0 or 1, LOW or HIGH, true or false, and so on. In
practice, the voltage representation a digital quantity such as a may
actually have a value that is anywhere within specified ranges. For
example, for TTL logic :
0V to 0.8V = logic 0
2V to 5V = logic 1
Any voltage falling in the range 0 to 0.8 V is given the digital value 0,
and any voltage in the range 2 to 5 V is assigned the digital value 1. The
digital circuits respond accordingly to all voltage values within a given
range.
Explanation:
