"Vernor Vinge - Fast Times at Fairmont High" - читать интересную книгу автора (Vinge Vernor)networks have been around since forever. What gives us
flexibility are the network nodes that are scattered all through the environment. See, look around you!тАЭ Bertie must have pinged on the sites nearest Juan: There were suddenly dozens of virtual gleams, in the rocks by the road, in the cars as they passed closest to him, on Juan's own clothing. Bertie gestured again, and the hills were alive with thousands of gleams, nodes that were two or three forwarding hops away. тАЬOkay, Bertie! Yes, the local nets are important.тАЭ But Bertie was on a roll. тАЬDarn right they are. Thumb-sized gadgets with very-low power wireless, just enough to establish locationтАФand then even lower power shortrange 20 Fast Times at Fairmont High by Vernor Vinge lasers, steered exactly on to the targeted receivers. Nowadays, it's all so slick that unless you look closeтАФor have a network snifferтАФyou almost can't even see that it's going on. How many free-standing nodes do you think there are in an improved part of town, Juan?тАЭ That sort of question had a concrete answer. тАЬWell, right now, the front lawn of Fairmont schools has ... 247 loose тАЬRight,тАЭ said Bertie. тАЬAnd what's the most expensive thing about that?тАЭ Juan laughed. тАЬCleaning up the network trash, of course!тАЭ The gadgets broke, or wore out, or they didn't get enough light to keep their batteries going. They were cheap; setting out new ones was easy. But if that's all you did, after a few months you'd have metallic garbageтАФhard, ugly, and generally toxicтАФall over the place. Juan abruptly stopped laughing тАЬWow, Bertie. That's the project? Bio-degradable network nodes? That's off-scale!тАЭ тАЬYup! Any progress toward organic nodes would be worth an A. And we might luck out. I'm plugged into all the right groups. Kistler at MIT, he doesn't know it, but one of his graduate students is actually a committeeтАФand I'm on the committee.тАЭ The Kistler people were cutting edge in organic substitution research, but just now they were stalled. The other relevant pieces involved idea markets in India, and some Siberian guys who hardly talked to anyone. Juan thought a moment. тАЬHey, Bertie, I bet that literature survey I did for you last month might really help on this!тАЭ Bertie looked blank. тАЬYou remember, all my analysis on 21 Fast Times at Fairmont High by Vernor Vinge |
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