In 1999, Sony launched Aibo, a line of robotic dogs designed to provide companionship to Japanese families. It could follow its owner around the house, wag its tail and respond to commands—all without the vet bills, bathroom breaks and sneeze-inducing fur of a regular house pet. Sensors and cameras on its body allowed it to learn the layout of a home so that, over time, it could navigate rooms just like a regular pooch.
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Source: Phys.org