A laptop keyboard from IBM that was known for its ergonomics. See TrackWrite
. See also Butterfly computer
An ultra-thin keyboard from Apple for its MacBook laptops starting in 2015. Users have experienced problems with the keyboard, including poorly responsive "sticky" keys, repeating characters or characters not appearing on screen. As a result, Apple created a Keyboard Service Program to resolve issues in its own repair centers or to reimburse users who paid to have their keyboards fixed.