How does steven hawking type?

Answer 1

Professor Stephen Hawking communicates using a speech synthesizer, powered by a computer program he operates with a switch. The program, called the Equalizer, selects from a list of several thousand words, phrases and letters, through which he can generate about 15 words a minute. Initially the switch was operated by hand, but after losing strength now uses a sensor which detects intentional twitches in his cheek muscle. (Eventually it may need to be adapted to use eye motions.)

Answer 2

Stephen Hawking was able to type using a specially designed computer system. He used a switch attached to his glasses, which allowed him to select letters and words on a computer screen. The computer then generated synthesized speech based on his selections.