The inventor who tried to make a one-handed keyboard With the new generation of small sized computers in 1991, keyboards had to shrink too. Edgar Matias thought he had the answer. Social Sharing CBC Archives · A one-handed keyboard Digital Archives30 years ago 2:15In 1991, student Edgar Matias invents a computer keyboard that works using just one hand.2:15 Computers were getting smaller in 1991, and it was getting harder to type on the tiny keyboards that came with them. That gave 21-year-old Edgar Matias an idea. "While the pocket computers are cute and functional, they're too small for the touch typist," explained reporter Howard Green in a profile for the CBC business program