Government intelligence agencies have a plan to build computers that store information inside DNA and other organic molecules(分子).
Intelligence Advanced Research Projects Activity(IARPA)announced plans to develop tabletop-sized machines that can store and retrieve(取回)data from large batches of polymers — a term that refers to a wide variety of long,string-like molecules. Polymers can store data in individual atoms or groups of atoms.
The project is an attempt to solve a basic problem of the modern era:the vast and growing costs of data storage. Datacenters around the world sucked up 416. 2 terawatt hours of electricity in 2016. That's about 3 percent of the global supply,and it accounts for 2 percent of global greenhouse gas emissions.
A 2016 paper found that DNA,in particular,could store computer information more densely,require less energy,and survive higher and lower temperatures than conventional hard drives. The authors of that paper reported on the successes of prototype(雏形)DNA computers that used the genetic molecules for both long-term storage and random access memory(RAM).
But no one has yet figured out how to handle DNA data storage on large scales.
IARPA officials said the new effort, called Molecular Information Storage, will be broken up into three periods:a two-year program to figure out how to store data in DNA or other molecules at high speed,a two-year program to figure out how to retrieve that data at high speed, and a two-year effort to develop an operating system that can run on that DNA.
Many of the technologies IARPA wants to develop are untested at these scales, so it's unclear how far away that proposed tabletop device really is.
【小题1】What would be the best title for the text?A.Store Data on DNA Computers |
B.Develop Computers of Future |
C.Polymers Used to Store Data |
D.Information Stored in DNA |
A.Consumed. | B.Stored. |
C.Delivered. | D.Produced. |
A.Produce and save less energy. |
B.Store more information faster. |
C.Be better for the environment. |
D.Control temperatures more easily. |
A.In Paragraph 3. | B.In Paragraph 4. |
C.In Paragraph6. | D.In Paragraph 7. |