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
2024-09-17
7
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/3762659.html
相关试题推荐
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Howmanyworkerswerekilledinthemethaneexplosion?[br][originaltext](
Whendidthelatestbombexplosiontakeplace?[originaltext]Abombrippedt
Whyaretheremanysuicideexplosionstakenplace?[originaltext]Theheadof
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Howmanypeoplediedinthecoalmine’sexplosion?[br][originaltext]Acoa
Howmanypeoplediedinthecoalmine’sexplosion?[originaltext]Acoalmine
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
随机试题
Itisgenerallybelievedthatthegreatestdamageofoldageisthelossof
按照创作来源,作品可以划分为()。A.原始作品 B.外国作品 C.演绎作
电气火灾监控系统主要包括()。A.电气火灾监控设备 B.剩余电流式电气火灾监
人工开挖时,两个人操作安全间距应保持()。A.1m B.1—2m C.
某一试验室需要进行AC-20C沥青混合料(70号A级道路石油沥青)马歇尔试验。已
消渴病的临床表现是A.口渴不欲饮 B.大渴引饮,小便量多 C.口渴喜冷饮
可抑制骨髓造血功能,或引起“灰婴综合征”,新生儿禁用的抗菌药物是A.林可霉素类
急性坏死性龈炎的发病特点不包括A.常发生于青壮年 B.发病急,经常与精神紧张有
关于地下水对边坡稳定性影响的说法,正确的是()。A:地下水产生动水压力,增强了岩
某酒店工程,建筑面积28700m2,地下2层,地上16层,现浇钢筋混凝
最新回复
(
0
)