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
52
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
今天,随着科技的飞速发展、通讯的廉价、计算机功能的强大和因特网的不断涌现,人们的生活日新月异。
解析
转载请注明原文地址:https://kaotiyun.com/show/XDQO777K
0
考博英语
相关试题推荐
Sleepisanimportantpartofourlives.Wespendaboutone-thirdofourlivessleeping.Formillionsofpeople,【51】,gettingen
InmostearthquakestheEarth’scrustcrackslikeporcelain.Stressbuildsupuntilafractureformsatthedepthofafewkilom
Itseemedtome,andstilldoes,thatthesystemofAmericanbusinessoftenproduceswrong,immoralandirresponsibledecisions,
Duringthenormaldevelopmentofself,achildisaffectedbycertaininfluentialfactors.1._____.Infantsformanattachmentwi
Hewasconcernedonlywithmundanematters,especiallythedailystockmarketquotations.
"Interculturalcommunication"iscommunication【51】membersofdifferentcultures.Thisdefinitionissimple,【52】theprocessisco
ProbablynomanhadmoreeffectonthedailylivesofmostpeopleintheUnitedStates___HenryFord,apioneerinautomobilep
Forthesereasons,thenewspaperishaving______problemsinthenorthofthecountry.
Inthepast,Americancollegesanduniversitieswerecreatedtoserveadualpurposetoadvancelearningandtoofferachancet
Wewere______bytheextenttowhichteacher’sdecisionsservedtheinterestsoftheschoolratherthanthoseofthestudents.
随机试题
【B1】【B4】
关于影响红细胞沉降率的因素,正确的是
某个体企业主张金柱欲为其62岁的母亲图雅、8岁的女儿张玉以及在其企业工作的员工28岁的司机罗帆投保保意外伤害保险。为此,他向保险公司详细询问了有关意外伤害保险的具体条件,并与保险公司签订了三份人身保险合同。请回答下列相关问题。在张某为其母亲图雅投保的合
根据《水工混凝土施工规范》(DL/T5144—2001),浇筑仓面混凝土料出现下列()情况时,应予挖除。
某外贸公司为增值税一般纳税人,2018年11月从国外进口一批货物,海关核定的关税完税价格为180万元,进口关税税率为10%,增值税税率为13%。则该公司在进口环节应缴纳增值税为()万元。
下列属于会计异常现象的是()。
图1乐器的准确称谓是()。
文化变迁是指由于族群社会内部的发展或由于不同族群之间的接触而引起的一个族群文化的改变。由于发明或借用而增添新的事物,由此导致旧事物丧失,是一种文化变迁;由于生态环境及社会生活变化,在没有替代物的情况下有些文化因素自动消失,也属于文化变迁。根据上述定义,下
情景:民华中学初三(2)班的郑光明同学因患肺炎住院,耽误了很多功课,同班同学赵晓亮在郑光明出院后每天晚上去他家给他补课,整整坚持了一个月,直到为郑光明同学补上所有落下的功课。请你以郑光明的妈妈的名义给民华中学的校领导写一封表扬信,建议学校领导对赵晓亮同学给
Onemajorobstacletoeconomicdevelopmentispopulationgrowth.Thepopulationsofmostdevelopingcountriesgrewataratemuc
最新回复
(
0
)