The end of the computer mouse

This fall, for the first time, sales of iPads are cannibalizing sales of PCs in schools, according to Charles Wolf, an analyst for the investment research firm Needham & Co. And a growing number of even more sophisticated technologies for communicating with your computer — such as the Leap Motion boxes and Sony Vaio laptops that read hand motions, as well as voice recognition services such as Apple’s Siri — are beginning to make headway in the commercial market.

John Underkoffler, a former MIT researcher who was the adviser for the high-tech wizardry that Tom Cruise used in “Minority Report,” says that the transition is inevitable and that it will happen in as soon as a few years…

“Human hands and voice, if you use them in the digital world in the same way as the physical world, are incredibly expressive,” he said. “If you let the plastic chunk that is a mouse drop away, you will be able to transmit information between you and machines in a very different, high-bandwidth way.”