I like the infomation you added. But you may want to reconsider your statement that "Perl's strings are a string of bytes", as there are actually two semantics: bytes and characters, especially when you have unicode in mind. (Obviously the actual storage is a stream of octets, but there are two different semantics to interpret. There is a very subtle difference in the concept of octet and byte, and probably you noticed that those two words are used very carefully nowadays in all kinds of standards.)

I know what you meant, just thought that that pariticular statement might be a little bit too generalized.