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
New Research Lights the Way to Super-fast Computers 1 New research published today in the journal Nature Communications, has dem
New Research Lights the Way to Super-fast Computers 1 New research published today in the journal Nature Communications, has dem
admin
2015-08-05
73
问题
New Research Lights the Way to Super-fast Computers
1 New research published today in the journal Nature Communications, has demonstrated how glass can be manipulated to create a material that will allow computers to transfer information using light. This development could significantly increase computer processing speeds and power in the future.
2 The research by the University of Surrey, in collaboration with the University of Cambridge and the University of Southampton, has found it is possible to change the electronic properties of amorphous chalcogenides, a glass material integral to data technologies such as CDs and DVDs. By using a technique called ion doping, the team of researchers have discovered a material that could use light to bring together different computing functions into one component, leading to all-optical systems.
3 Computers currendy use electrons to transfer information and process applications. On the other hand, data sources such as the Internet rely on optical systems; the transfer of information using light. Optical fibres are used to send information around the world at the speed of light, but these signals then have to be converted to electrical signal once they reach a computer, causing a significant slowdown in processing.
4 "The challenge is to find a single material that can effectively use and control light to carry information around a computer. Much like how the web uses light to deliver information, we want to use light to both deliver and process computer data, " said project leader, Dr. Richard Curry of the University of Surrey.
5 "This has eluded researchers for decades, but now we have shown how a widely used glass can be manipulated to conduct negative electrons, as well as positive charges, creating what are known as ’ pn-junction’ devices. This should enable the material to act as a light source, a light guide and a light detector—something that can carry and interpret optical information. In doing so, this could transform the computers of tomorrow, allowing them to effectively process information at much faster speeds. " 6 The researchers expect that the results of this research will be integrated into computers within ten years. In the short term, the glass is already being developed and used in next-generation computer memory technology known as CRAM, which may ultimately be integrated with the advances reported.
A Expectation of the discovery
B The problem of current computers
C A new finding
D The purpose of the research
E Public reaction to the discovery
F The use of the new material
Paragraph 4______
选项
答案
D
解析
根据理查德的话可以知道,研究的目的是使用光来传递和处理计算机数据。本段主要介绍研究的目的,故选D。
转载请注明原文地址:https://kaotiyun.com/show/hxQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
From1994to1998thenumberofAmericanswhohaddonatedakidneyreached244.Sometransplantcentersinvent"medicalproblem
Hearingproblemsmaybealleviatedbychangesindietandexercisehabits.
Mothersandmatchmakers(媒人)havealwaysknownthatnotbeingmarriedisadefinitehealthhazard.Butwhenateamofresearchers
Iwanttoprovidemyboyswithadecenteducation.
MoreAboutAlzheimer’sDiseaseScientistshavedevelopedskinteststhatmaybeusedinthefuturetoidentifypeoplewith
Inthebeginningofparagraphonewearetoldthatscientistscannotagree______.Whatdoes"some"inthesecondsentenceofp
MiddleAge:ALowPointforMostPeoplearoundtheglobehittheheightoftheirmiseryanddepressioninmiddle【51】______,
MoreAboutAlzheimer’sDiseaseScientistshavedevelopedskinteststhatmaybeusedinthefuturetoidentifypeoplewith
FinancialRisksSeveraltypesoffinancialriskareencounteredininternationalmarketing;themajorproblemsincludecommercia
AlargecrowdassembledoutsidetheAmericanembassy
随机试题
试述科技兴贸战略的内涵。
下列哪一种是良性肿瘤
关于X线产生条件的叙述,错误的是
在大型工业项目的资格预审表中,考查()内完成同类工程项目调查。
水泥稳定土与石灰稳定土相比具有很多特点,以下说法不属于水泥稳定土基层独有特点的是()。
材料:中国教育科学研究院曾对深圳市南山区15所学校1261名家长进行了《关于家长对学校教育需求》的问卷调查。调查数据显示,对于孩子的发展,88.38%的家长认为道德品质是最希望学校关注的。由此可见,对于学生的价值观教育,家长对学校抱有较大的期待。问题:
学校文化具有哪些特性?
依照我国《宪法》规定,决定省、自治区、直辖市的范围内部分地区进入紧急状态是全国人民代表大会常务委员会的一项重要职权。()
下面是有关C语言字符数组的描述,其中错误的是
DearSir/Madam,ItismypleasuretorecommendMissAnderson,oneofmyformerclerks,tofillthepostofyouradvertisement
最新回复
(
0
)