For ideographic languages all kinds of systems exist, otherwise it's mostly minor variatons of QWERTY, plus putting some accented/non-standard letters somewher.

For ideographic languages all kinds of systems exist, otherwise it's mostly minor variatons of QWERTY, plus putting some accented/non-standard letters somewher. Germany has QWERTZ while France has AZERTY for some kind of reason (a special hate for the letter 'a'?). As for programming languages, it's quite common for lisp programmers to make the parens more accessible. And of course, there's the infamous APL keyboard.