<P> Some multi-byte character encodings ( character encodings that can handle more than 256 different characters ) are also true extended ASCII . That means all ASCII characters are encoded with a single byte with the value that is used in ASCII to encode that character . They can be used in file formats where only ASCII bytes are used for keywords and file format syntax , while bytes 0x80 - 0xFF might be used for free text , including most programming languages , where language keywords , variable names , and function names must be in ASCII , but string constants and comments can use non-ASCII characters . This makes it much easier to introduce a multi-byte character set into existing systems that use extended ASCII . </P>
<P> Some multi-byte character encodings ( character encodings that can handle more than 256 different characters ) are also true extended ASCII . That means all ASCII characters are encoded with a single byte with the value that is used in ASCII to encode that character . They can be used in file formats where only ASCII bytes are used for keywords and file format syntax , while bytes 0x80 - 0xFF might be used for free text , including most programming languages , where language keywords , variable names , and function names must be in ASCII , but string constants and comments can use non-ASCII characters . This makes it much easier to introduce a multi-byte character set into existing systems that use extended ASCII . </P>
how many bytes did each character require for extended ascii characters
how many bytes did each character require for extended ascii characters
a single byte
a single byte