One of these is that it does not define a standard way of representing words or phrases in different languages. While Unicode is a very powerful standard, it does have some limitations. This can be useful for things such as representing non-standard characters (like Greek!)
Unicode is also sometimes used in software to represent special characters that are not part of the standard ASCII character set. As long as the characters are stored in the same format, they will sort together regardless of what language they are from. This can be useful for things such as sorting lists of words from different languages into alphabetical order. It also has a more general use as a standard way of representing any character (letter, number or symbol) from any language in any computer. Unicode is primarily used online as a way of making sure that the characters display correctly (ie non-Roman words, accents etc). Enter your Greek text and this app will convert it to Unicode.
