首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
1. The onrush of cheap communications, powerful computers and the Internet all explain why many people feel that, nowadays, chan
1. The onrush of cheap communications, powerful computers and the Internet all explain why many people feel that, nowadays, chan
admin
2014-03-02
53
问题
1.
The onrush of cheap communications, powerful computers and the Internet all explain why many people feel that, nowadays, change is happening ever more rapidly as technological progress accelerates.
Moore’s law, that the power of microchips doubles every 18 months, has been tested and found correct. This is what gives people the sense of a world shifting beneath their feet.
2.
Yet the implication that rapid change is a new phenomenon is again misleading. If you measure the time it takes for a technology to become widely diffused, today’s experience does not seem unusual.
Take the car. The basic patent for an internal-combustion engine capable of powering a car was fried in 1877. By the late 1920s—50 years later—over half of all American households owned a car.
3.
The comparable dates for the computer axe harder to tie down, but the first big computer, based on vacuum valves, was built in 1946.
The transistor—the first semiconductor device—was invented at Bell Laboratories in 1948. The first patent for an integrated circuit was filed in 1959. Now, in 1999-50 years after the first one was built—around half of American households own a computer. The pace of introduction has been similar to that of the car.
4.
You have to cheat, choosing only the date for the personal computer, say(mid-1970s), or the internet (ditto) to make it seem much more rapid.
Comparing its diffusion among private users is, you might say, unfair to the computer, for that machine’s main use is in businesses. On that measure, the best historical analogy is with electrification, and the spread of the electric dynamo into factories.
5.
According to Paul David, a historian at Stanford University in California, the first electricity-generating stations had been installed in New York and London in 1881, but it was well into the 1920s before the dynamo became widely used and started to raise productivity.
The adoption of the computer in business has also been slow, and failed to have any measurable impact on productivity until very recently.
选项
答案
如果你想它看起来的确比别的技术快得多,那么你就得蒙混过关了,你可以从个人计算机或者因特网的诞生算起,也就是从20世纪70年代中期算起。
解析
转载请注明原文地址:https://kaotiyun.com/show/UDQO777K
0
考博英语
相关试题推荐
ForthepeoplewhohavenevertraveledacrosstheAtlanticthevoyageisafantasy.Butforthepeoplewhocrossitfrequentlyo
Vitaminsareagroupofsubstancesfoundinfood.Thebodyneedsthemforlifeandhealth.Sonaturally,manypeopleareconcern
Sleepisanimportantpartofourlives.Wespendaboutone-thirdofourlivessleeping.Formillionsofpeople,【51】,gettingen
InmostearthquakestheEarth’scrustcrackslikeporcelain.Stressbuildsupuntilafractureformsatthedepthofafewkilom
Tensofthousandsofretireesarepullingupstakesinsuburbanareasandfashioningtheirownretirementcommunitiesinthehea
Overthepasttwodecades,teenagechildbearingintheUnitedStates—asmeasuredbythenumberofbirthstoteenagers—hasdecrea
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
Thebestfilmsarethosewhich______nationalorculturalbarriers.
Someplantsare______todiseaseandmustbetakengoodcareofforthewholegrowingperiod.
Rejectingtheurgingofhisphysicianfathertostudymedicine,Hawkingchoseto______onmathandtheoreticalphysics.
随机试题
简述溶解氧的测定意义。
下述关于CO2在血液中运输的方式的叙述,错误的
典型麻疹的出疹顺序是
A.桔梗B.地黄C.玄参D.三七E.当归属于“四大怀药"的是
《物权法》规定,因抢险、救灾等紧急需要,依照法律规定的权限和程序可以征收单位、个人的不动产或者动产。()。
内部收益率作为评价投资方案经济效果的指标,其特点包括( )。
监盘库存现金是注册会计师证实资产负债表所列现金是否存在的一项重要程序,秘审计单位必须参加盘点的人员是( )。
曹七巧:张爱玲()
在公共交通工具上抢劫是指()。
阅读下列材料:材料一我们国内的主要矛盾,已经是人们对于先进的工业国的要求与落后的农业国的现实之间的......这一矛盾的实质,是在我国社会主义制度已经建立的情况下,也就是先进的社会主义制度同落后的社会主义生产力之间的矛盾。党和人民当前的主要任务,就是集
最新回复
(
0
)