What are the advantages of unicode compared to ascii?

ASCII defines 128 characters. Which maps the numbers 0-127. Unicode defines (less than) 2^21 characters, which, similarly, map to numbers 0–221.

Unicode is a superset of ASCII, and the numbers 0–128 have the same meaning in ASCII as they have in Unicode. For example, the number 65 means "Latin capital 'A'".

Answerboth technicians;