Wouter van Ooijen wrote: >> It replaces what was there before in the same position >> on the punched tape with what could be seen as a "NOP". >> If my memory doesn't fail me... > > Totally correct. (not surprising, knowing that you are a bit older than > my average student) > Probably correct... :-) Found a nice page with the historical background to the lower 32 "control chars" (and DEL) in the ASCII table. http://nemesis.lonestar.org/reference/telecom/codes/ascii.html A *lot* of intersting historical facts about computing in general there ! :-) Enjoy. Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist