In C Programming the range of char is number .why are use the range in number because this is the char?

Answer 1

A char is a numerical representation of a "character"... and then, it can also be a number.

A char datatype has a numerical range of -254 to 255 (eight bits.) Because the ASCII representation of a single-byte character is 0 - 255, we need a single-byte datatype to efficiently represent character data. However, that doesn't mean that a char _has to_ be a (ascii) character.