It said the technology would allow pupils to access the internet for research without the need to book computer rooms or be in a classroom.

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Massive pumps are used to cool down all the computer rooms.

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While most equipment in computer rooms have received major upgrades in the past decade, devices called routers and switches that move data around function largely the same way.

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Again, you have to deal with signal issues in high-RF noise environments, deal with materials issues acting as RF shields (like in many computer rooms or anything with lots of metal in it), and you have to balance the convenience with the somewhat-increased security risk.

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Eventually this might lead to smaller collections of printed books on library shelves, but it also could free up space to meet growing community needs for meeting rooms and computer labs.

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On visits to rural schools in Africa and India I was often taken to computer labs in locked and shuttered rooms with rows of idle computers protected under plastic covers.

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They are just simple, basic rooms with 10 to 12 computer terminals, and usually one or two telephone booths.

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It would fill up that computer with - fill up two of these rooms and it wouldn't do as much as a PC will do today.

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Instead, sets for entire rooms spanning kitchens to bathrooms to porches can be mocked up and created on a computer screen without the help of a single camera.

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