Unicode is a universal character encoding standard. This standard includes roughly 100000 characters to represent characters of different languages. While ASCII uses only 1 byte the Unicode uses 4 bytes to represent characters. Hence, it provides a very wide variety of encoding.

Unicode supports more than a million code points, which are written with a "U" followed by a plus sign and the number in hex; for example, the word "Hello" is written U+0048 U+0065 U+006C U+006C U+006F (see hex chart).

Unicode is the universal character encoding used to process, store and facilitate the interchange of text data in any language while ASCII is used for the representation of text such as symbols, letters, digits, etc. in computers. ASCII : It is a character encoding standard for electronic communication.

Inserting Unicode characters To insert a Unicode character, type the character code, press ALT, and then press X. For example, to type a dollar symbol ($), type 0024, press ALT, and then press X. For more Unicode character codes, see Unicode character code charts by script.