error reporterror transmissionerror trappingescescape characterescape codeescape keyescape sequenceescape sequencesesdiesi controlester aggetailetbetcethernetetxeuroeuropean academic research networkeuropean paper sizesevaluateevaluationeven driven programeven parityeventevent drivenevent driven processingevent driven programmingevent sriven pregrammingevocative typefaceexaexabyteexcelexceptionexception error 12exception handlingexception reportingexcess n notatinexchange bufferingexchange sortexchange sorting algorithmexchangeable diskexclusive nor gateexclusive orexclusive or gateexe fileexecutableexecutable formexecutable programexecutable statement