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
2024-09-15
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 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] 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 air flow.
答案
C
解析
文章第三段第五句指出If the satellites worked on the cellular principle so you got spatial reuse of frequencies,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、五段找到原句,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3759207.html
相关试题推荐
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Thecommunicationsexplosionisonthescaleoftherail,automobileortele
Manyautomobileaccidentswere_____carelessdriving.A、attributedtoB、resulted
Manyautomobileaccidentswere______carelessdriving.A、attributedtoB、resulte
(1)Thecommunicationsexplosionisonthescaleoftherail,automobileort
(1)Thecommunicationsexplosionisonthescaleoftherail,automobileort
Smokingissoharmfultohealththatitkills______eachyearthanautomobilea
随机试题
Whenwe’relearningaforeignlanguage,makingsenseofwhatwehearisthe
颜元批判宋明教育的弊端,提出“习行”的教育方法。符合颜元“习行”观点的是(
A.低磷血症 B.肠道菌群失调 C.营养不良 D.谷氨酰胺缺乏症 E.锌
呼吸衰竭时发生二氧化碳潴留的主要机制是由于A.通气/血流比例失调 B.弥散
某上市公司2010年2月发行股份购买资产,以卜特定对象认购的股份应予锁定36个月
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
列宁指出:“设想世界历史会一帆风顺、按部就班地向前发展,不会有时出现大幅度的跃退
以下关于放松训练的说法,错误的是()。 (A)放松训练的基本假设是改变生理反
中药饮片批发企业中药材验收人员的资质要求是()A.具有执业药师资格和3年以上
属于趋化因子CXC亚族的代表成员是A.IL-2 B.IL-4 C.IL-6
最新回复
(
0
)