Linked from
The 7 pages that link to ASCII, each with the reason it gives.
Character encodingBroader topic: UTF-8 retains ASCII's byte values for its first 128 characters.
ByteBroader topic: ASCII illustrates how individual byte values can stand for text characters.
UTF-8Related: UTF-8 was designed so ASCII bytes retain their original values.
EmoticonNarrower topic: Classic emoticons use punctuation characters available in ASCII.
ASCII artNarrower topic: Its restricted repertoire sets the original materials for ASCII art.