首页
登录
职称英语
The communications explosion is on the scale of the rail, automobile or tele
The communications explosion is on the scale of the rail, automobile or tele
游客
2023-11-01
9
管理
问题
The communications explosion is on the scale of the rail, automobile or telephone revolution. Very soon you’ll be able to record your entire life electronically—anything a microphone or a camera can sense you’ll be able to store. In particular, the number of images a person captures in a lifetime is set to rise exponentially. The thousand images a year I take of my children on a digital camera are all precious to me. In a generation’s time, my children’s children will have total image documentation of their entire lives—a visual log of tremendous personal value.
By then we’ll be wrestling with another question: how we control all the electronic devices connected to the Internet: trillions of PCs, laptops, palmpilots, cell phones and other gadgets. In Cambridge, we’re already working on millimeter-square computing and sensing devices that can be linked to the Internet through the radio net work. This sort of connectivity will expand dramatically as microscopic communications devices become dirt-cheap and multiply. Just imagine what the paint on the wall could do if it had this sort of communications dust in it: change color, play music, show movies or even speak to you.
Falling costs raise other possibilities too. Because launching space vehicles is about to become very much cheaper, the number of satellites is likely to go up exponentially. There’s lots of space up there so we could have millions of them. And if you have millions of low-orbit satellites you can establish a global communications network that completely does away with towers and masts. If the satellites worked on the cellular principle so you got spatial reuse of frequencies, system capacity would be amazing.
Speech is so flexible that I expect voice communication to become almost free eventually: you’ll pay just a monthly fixed charge and be able to make as many calls as you want. By then people will also have fixed links with business contacts, friends and relatives. One day I anticipate being able to keep in touch with my family in Poland on a fibreoptic audio-video link: we’ll be able to have a little ceremony at supper-time, open the curtains and sit down "together" to eat.
Cars are an interesting IT-platform because they have big batteries and lots of so far unconnected digital devices. Soon each one will be an entity on the Internet so your children can play interactive games while you’re traveling and your partner can deal with emails. And every lamppost could be on the Internet too—each one with sensors to monitor light, pollution, air quality and traffic flow. [br] Which of the following is INCORRECT according to the passage?
选项
A、Voice communication becomes almost free eventually.
B、Your children can play interactive games in the car.
C、Spatial reuse of frequencies will be in trouble.
D、Lamppost could monitor pollution and traffic flow.
答案
C
解析
推理题。文章第三段第五句指出If the satellites worked on the cellular principle so you got spatial reuse offrequencies,system capacity would be amazing.所以[C]与原文内容不符,故为答案。[A]、[B]和[D]均可在文中第四、五段找到依据,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3148091.html
相关试题推荐
Smokingissoharmfultohealththatitkills______eachyearthanautomobilea
Whendidthelatestbombexplosiontakeplace?[br][originaltext]Abombri
Whendidthelatestbombexplosiontakeplace?[originaltext]Abombrippedt
Whyaretheremanysuicideexplosionstakenplace?[br][originaltext]Theh
Whyaretheremanysuicideexplosionstakenplace?[originaltext]Theheadof
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Howmanypeoplediedinthecoalmine’sexplosion?[br][originaltext]Acoa
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
随机试题
[originaltext]M:Iwaslateeighttimeslastyear.W:Iwaslatetwicethatoft
5QuestionsontheOriginsofChristmasThetraditionsweas
Youcantellalotaboutpeoplebylookingattheirhair—andnotjustwhethe
A.抗Jo-1抗体 B.抗乙酰胆碱受体抗体 C.核周型抗中性粒细胞胞浆抗体
我国民国时期的大教育家( )被称为“万世师表”。A.蔡元培 B.胡适 C.
下列哪种疾病滑膜积液的黏稠度增高()A.甲状腺功能减退B.系统性红斑狼疮C.腱
授权最根本的一条原则是A.视能授权 B.合理授权 C.合法授权 D.监督控
下列押品属于应收账款分类的是( )。A..流动资产 B.保本型理财产品 C
关于买卖合同中标的物毁损灭失的风险承担,如果当事人没有约定交付地点或者约定不明确
留存收益账户是用以反映企业从历年实现的利润中提取部分以及内部积累尚未分配的利润的
最新回复
(
0
)