Big Blue originally introduced the Butterfly on the ThinkPad 701C in March 1995. The unusual design--a keyboard that folded out when the notebook was opened up, making it wider than the screen--garnered much praise, leading to the machine's inclusion in the design collection of the Museum of Modern Art in New York.
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However, the company's design center here has been experimenting with a number of designs that use Butterfly-like technology.
