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
2024-09-22
2
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 their email. And every lamppost could be on the Internet too—each one with sensors to monitor light, pollution, air quality and traffic flow. [br] What’s the central topic of the passage?
选项
A、IT-platform.
B、Visual log.
C、Voice communication.
D、Telecoms.
答案
D
解析
主旨题。本文第一段第一句The communications explosion is on the scale of the rail,automobile ortelephone revolution.就提到了关键词组The communications explosion,下文主要讲述了在未来高度发达的电讯业可能引发的人们生活和工作中的巨大变化,因此[D]“电讯业”为正确答案。[A]“计算机平台”在文中最后一段出现,是指汽车;[B]“可视记录”出现在第一段末尾,说的是“相片,影像”;[C]“有声通讯”是[D]的一部分,因此[A]、[B]和[C]均不合适,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3769751.html
相关试题推荐
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Smokingissoharmfultohealththatitkills______eachyearthanautomobilea
Smokingissoharmfultohealththatitkills______eachyearthanautomobilea
Howmanyworkerswerekilledinthemethaneexplosion?[originaltext](23)Am
Whendidthelatestbombexplosiontakeplace?[originaltext]Abombrippedt
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Howmanypeoplediedinthecoalmine’sexplosion?[originaltext]Acoalmine
随机试题
[originaltext]M:Shanika,thanksforjoiningustoday!W:Mypleasure.M:First
Althoughnicotineisprobablythewell-knownchemicalincigarettes,itisnotn
【S1】[br]【S7】A、mustB、canC、needD、mayD考查情态动词及其固定搭配。我们一般学的情态动词都是后面直接接动词原形的,但是文
[originaltext]Hello,everyone.Hereisaquestionforyou.Thecustomeris
在半通行地沟内,管道或保温层外表面至沟顶的净距取值范围为()mm。A.200
赵先生,58岁,机关主任,高血压病史10年,一直规律服药,近一个月赵先生自感乏力
某企业为一般纳税人,本月出售产品收到价款100万元,出售产品收到的增值税17万元
中药蜜丸贮藏不当易发生霉变。适宜霉菌生长的温度和相对湿度是()A.10~30
某项目设计生产能力为50万件/年,预计单位产品售价为150元,单位产品可变成本为
女性,24岁,近日发现左膝关节疼痛,行走困难,休息缓解,自觉左小腿内似有肿块,压
最新回复
(
0
)