内容简介
ProgrammingLegendCharlesPetzoldunlocksthesecretsoftheextraordinaryandprescient1936paperbyAlanM.TuringMathematicianAlanTuringinventedanimaginarycomputerknownastheTuringMachine;inanagebeforecomputers,heexploredtheconceptofwhatitmeanttobecomputable,creatingthefieldofcomputabilitytheoryintheprocess,afoundationofpresent-daycomputerprogramming.ThebookexpandsTuring’soriginal36-pagepaperwithadditionalbackgroundchaptersandextensiveannotations;theauthorelaboratesonandclarifiesmanyofTuring’sstatements,makingtheoriginaldifficult-to-readdocumentaccessibletopresentdayprogrammers,computersciencemajors,mathgeeks,andothers.InterwovenintothenarrativearethehighlightsofTuring’sownlife:hisyearsatCambridgeandPrinceton,hissecretworkincryptanalysisduringWorldWarII,hisinvolvementinseminalcomputerprojects,hisspeculationsaboutartificialintelligence,hisarrestandprosecutionforthecrimeof"grossindecency,"andhisearlydeathbyapparentsuicideattheageof41.