资源描述：
《Computer virus 计算机专业英语论文》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ComputervirusAbstract:Acomputervirusisacomputerprogramthatcancopyitselfandinfectacomputer.Theterm"virus"isalsocommonlybuterroneouslyusedtorefertoothertypesofmalware,includingbutnotlimitedtoadwareandspywareprogramsthatdonothavethereproductiveability.Atrueviruscanspreadfromonecomputertoa
2、nother(insomeformofexecutablecode)whenitshostistakentothetargetcomputer;forinstancebecauseausersentitoveranetworkortheInternet,orcarrieditonaremovablemediumsuchasafloppydisk,CD,DVD,orUSBdrive.Virusescanincreasetheirchancesofspreadingtoothercomputersbyinfectingfilesonanetworkfilesystemo
3、rafilesystemthatisaccessedbyanothercomputer.Asstatedabove,theterm"computervirus"issometimesusedasacatch-allphrasetoincludealltypesofmalware,eventhosethatdonothavethereproductiveability.Malwareincludescomputerviruses,computerworms,Trojanhorses,mostrootkits,spyware,dishonestadwareandothe
4、rmaliciousandunwantedsoftware,includingtrueviruses.VirusesaresometimesconfusedwithwormsandTrojanhorses,whicharetechnicallydifferent.Awormcanexploitsecurityvulnerabilitiestospreaditselfautomaticallytoothercomputersthroughnetworks,whileaTrojanhorseisaprogramthatappearsharmlessbuthidesmal
5、iciousfunctions.WormsandTrojanhorses,likeviruses,mayharmacomputersystem'sdataorperformance.Somevirusesandothermalwarehavesymptomsnoticeabletothecomputeruser,butmanyaresurreptitiousorsimplydonothingtocallattentiontothemselves.Somevirusesdonothingbeyondreproducingthemselves.KeyWords:Comp
6、utervirus、virus、Malware.Introductionsection：Thefirstacademicworkonthetheoryofcomputerviruses(althoughtheterm"computervirus"wasnotinventedatthattime)wasdonebyJohnvonNeumannin1949whoheldlecturesattheUniversityofIllinoisaboutthe"TheoryandOrganizationofComplicatedAutomata".TheworkofvonNeum
7、annwaslaterpublishedasthe"Theoryofself-reproducingautomata".InhisessayvonNeumannpostulatedthatacomputerprogramcouldreproduce.In1972VeithRisakpublishedhisarticle"SelbstreproduzierendeAutomatenmitminimalerInformationsübertragung"(Self-reproducingautomatawithminimalinformationexchange).
