资源描述:
《硕大而又神奇的电子数字积分计算机年前首次亮相》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、硕大而又神奇的电子数字积分计算机60年前首次亮相,fgfaf:fgf:,?5?1,!!fg????<#,fg,??!u?#u#%&u0()ut!+,uh.(/0123%u???lishedsomethingmoreimPortant:ItsParkedtheimaginationofscientistsandindustrialists.Inafewf:ars,eomPuterswouldPoPupatuni-versities,governmentageneies,banksandinsura
2、nee??<p>;???????3??,<?<??8$P?f??<a??>r?5??????}!>G??<???>??sQ?>t<????????????J,<?<??????.????}!????,<?<??E<?<?????</???(<?????,?V?3?E????????<?fa?X?l?3?#>?f:???EENIAC???]??</}!<???<??3,
3、?EQ?>t???s??<B,?y??<2=???$???????<3?????T????????}!?y<?ENIAC???????b,?????d?T?3?????3?j??????}!?6???E???o???R<??b?????d?U?=???0????<F?]<?????ENIAC???k60?????????W$?}!???r????????????,?E??<[$;???.<?<??????T??<mfd??????23},
4、??????fa??<?f:},???????????????b?????x?????u?C<??:$N?????T(????ABC)}!>G?j,ENIAC?8???????i?y?b????<T????:??????<???????????<r??????=?$?}!Q???<[?3,?????T?y?E?b??},?x???T??},???]??>???Q?????Q???}!??Q[????????ENIACI??i:nl?yklQ??U?=??????
5、$(?????T??3,<????:Q???Q?translueent!t??nlz,lju:s??tlfn?X?l?3??}y}i,j??<?{??<q???E??????,?b??34ehurnl:nl.arguaba:gitbl1rlfn$,fa<>,?S11<?)i?kJe<>?eteompanies.AUNIVAC,eomputer(withdeeorativelights,ofcourse)fromtheeompanysubse?3entlyfoun
6、ded?TEekertandMauehly,predietedtheonteomeofthe1952Presiden-tialeleetion,whileanotheraPpearedinabrassiere6adtout-in??yetanotheradvancementinseienee.TheEn??isheodeeraekingmachine,Colossus,beeamefalnousin?1lit?aeircles.ButitwasdemolishedaftertheWorldWar11andre
7、mainedshroudedinseereeyfordeeades.ComPared??thothereomputersthatperformedsuehPractiealfunetions,ENIACwasanoddbirdinteehniealterms.Itreliedona10<?digitdeeimal??stem,ratherthanthebin?a??stemsofonesandzerosusedbyvirtuallyallsubse??enteomPuters,eventhosedeve
8、lopedbyEekertandMauehly.RograrnseouldnotbestoredonENIAC.Itdidnfgtreallyemployeonditionalbranehing<?theif/thenstatementsthatformtheeornerstoneofmodemPrograrnmlng??AndonlyoneENIAC,infaet,waseverbuilt.