History Hardware interrupts were introduced as an optimization, eliminating unproductive waiting time in polling loops, waiting for external events. The first system to use this approach was the DYSEAC, completed in 1954, although earlier systems provided error trap functions.
hiStorY harDwaRE interrupTs wEre iNTRoduceD as aN oPtImiZaTion, eliminaTinG unpRoduCtIVe waiTing timE In polling LooPs, wAiTINg fOR exteRnAl evEnts. THe first SYStem to uSe tHis ApproAch Was ThE DYseAC, cOmPlETEd In 1954, aLthough earLIer sYStEmS pRovIdeD errOR TRap fUNCTiOnS