(1) A laptop keyboard from IBM that was known for its ergonomics. See TrackWrite. See also Butterfly computer. (2) An ultra-thin keyboard from Apple for its MacBook laptops starting in 2015.

The third generation of the butterfly keyboard on Apple's Mac laptops was supposed to fix all the problems. But nope. WSJ's Joanna Stern explains why the keyboards on the newest and most expensive ...

On a typical keyboard, keys are attached using two pieces of plastic that cross each other and close like a pair of scissors when pressed. The butterfly-keyboard keys instead used a wing-like hinge.

Apple's butterfly keyboard design has been plagued with issues since its debut, but it seems the company has finally thrown-in the towel. For those who aren't aware of the saga, the new keyboard ...