In 1962, ARPA launched a nationwide effort to build a computer network called ARPA-NET.

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Prof Nicolelis said the experiments could lead to the creation of a biological computer -- or "brain-net" -- linking multiple brains.

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Even though you increase single-computer power usage when consolidating, net power decreases as you take other systems offline.

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Computer geeks call it war-driving or Net stumbling: roving around with a Wi-Fi-enabled laptop to scan for nearby Wi-Fi access points, then trying to see if they can use them for free.

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With Berners-Lee's "http protocol, " computer jockeys the world over began making the Net easier to use with point-and-click programs.

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Always-on net connection: If your computer is always connected to the web in someway this will be a lot easier, but if needed, it can dial up and send the images off too.

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Wal-Mart Stores and Compaq Computer want all their suppliers on the Net.

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Its reaction with the odour molecules changes a detector's electrical resistance, and this signal is fed into a neural net (the closest that computer technology has got to imitating the pattern-recognising abilities of networks of nerve cells) to work out what is being smelt.

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The Net Heads, on the other hand, mostly come out of the computer-and-software world.

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