But what about using a network of tiny computers for surveillance? A group of Scottish university researchers is working on this idea using nano-scale circuitry.
The goal is to develop pinhead-sized computers known as 'Specks'. Each Speck will collect information from its surroundings, process it and communicate wirelessly with other Specks nearby. Current working models are 1 centimetre cubed, but the team believe they can reduce that to 1 millimetre cubed by 2009.
|The goal is to develop pinhead-sized computers known as 'Specks', current working models are about one centimetre cubed.|
Image: University of Edinburgh