Q:- What is the difference between ascii Code and UNICODE ?
ascii code represents 8 bytes data whereas  UNICODE represents 16 bytes data for supporting universal languages.

One major draw back to ASCII was you could only have 256 different characters. However, languages such as Japanese and Arabic have thousands of characters. Thus ASCII would not work in these situations. The result was Unicode which allowed for up to 65,536 different character

ASCII Codes:

Unicode : Follow this link : http://unicode-table.com/en/#hebrew