By Jon Woodcock, Chris Woodford
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Connect PETCAM d The iSeePet feeder allows pet owners to contact their pampered pooches. Via a web link they can instruct the feeder to ring for their pets’ attention. They can then view their animals using the webcam. >> >> HOW THE PETCAM WORKS Robo-dog >> .. See also: Wi-Fi toy p. 46, Convergence p. 56, E-voting p. 58, Spy p. 214 Food is dispensed into the dish on command. When a pet owner logs onto the petcam website, a video from the camera eye in the feeder unit is shown. The feeder can be instructed via the website to sound an electronic noise to summon the pet to the feeder unit.
Most gadgets are designed to perform more than one function and some to communicate with other gadgets. The wires and cables that have been so essential to getting us connected will soon be a thing of the past, as technology becomes increasingly wireless and data is transmitted via radio or infrared waves. 40 How does this thu m siz bot c rob ed ommunicate? th? Wh y d p. 5 0 pla y wi o ’t n es ent have a ba d o r ll t this o p. 4 4 (c) 2010 Dorling Kindersley. All Rights Reserved. 41 . Connect >> HOW THE XO LAPTOP WORKS Two rotating antennas pick up Wi-Fi signals.
Screen move up, shading pixels gray. 2, As base electrodes turn negative, some black granules form on page. Viewer sees letters >; HOW E-INK WORKS pixels form words. granules move up, making black black 3. With both electrodes negative, all » ►►You can carry thousands of music tracks on an MP3 player-so why shouldn't you do the same with books? Convenient, easy-to-read e-books (electronic books) promise to put whole libraries in your pocket. ► ► BOGK =J Laptops, cell phones, and calculators display words and pictures using millions of tiny dots called pixels.