19 characters need 1 byte to store in C

Bytes

Hi friendz,

I'm not a professional in C. but when. I  try a C program to store the character in a variable.

I accidently found a new thing. are you eagerly waiting to know what is that.

1 character needs 1 byte to store. so array concept was found to store more than 1 character.

but what i was found is. I store 19 characters in a single byte.

will someone tells me why 19 characters need 1 byte to store????