Opinions expressed by Entrepreneur contributors are their own. Ready for a handy office upgrade? Microsoft has introduced its Sculpt Ergonomic Keyboard, dubbed “the Manta Ray” because of its shape.

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Your keyboard is an essential part of your computer, so when it stops working correctly and stops responding as you're used to it's only natural that you'd want to replace it as quickly as possible.

When Bill Buxton worked at Xerox’s Palo Alto Research Center in the early 1990s, he examined the classic children’s homemade telephones: two cups connected by a taut string. He wondered why that same ...