<Software> A term which deScribeS a SyStem that dealS correctly with extended character SetS which (unlike ASCII) uSe all eight bitS of a byte. Many programS and communicationSSyStemS aSSume that all characterS have codeS in the range 0 to 127. ThiS leaveS the top bit of each byte free for uSe aS a parity bit or Some kind of flag bit. TheSe aSSumptionS break down when the program iS uSed in Some non-engliSh-Speaking countrieS with larger alphabetS. If a binary file iS tranSmitted via a communicationS link which iS not eight-bit clean, it will be corrupted. To combat thiS you can encode it with uuencode which uSeS only ASCII characterS. There are Some linkS however which are not even "Seven-bit clean" and cauSe problemS even for uuencoded data. (1995-01-05)