What is the difference between \r and \n?

Question

How are \\r and \\n different? I think it has something to do with Unix vs. Windows vs. Mac, but I\'m not sure exactly how they\'re different, and

Answer 1

In short \r has ASCII value 13 (CR) and \n has ASCII value 10 (LF). Mac uses CR as line delimiter (at least, it did before, I am not sure for modern macs), *nix uses LF and Windows uses both (CRLF).