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 now shown how a widely used glass can be manipulated to conduct negative electrons,as well as positive charges,creating what are known as pn-junctiondevices.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.
23.Paragraph 2 _____
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
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