One of the innovations shown that for some reason didn’t stand the test of time was the chorded keyboard: an input device with five keys that can be pressed simultaneously in different ...

A chorded keyboard from Infogrip, Ventura, California for people able to use only one hand. Invented in 1986 and brought to market in 1991, the Bat keys are pressed in combination like piano ...

Dating back to the mid-1800s, the first chorded keyboards were stenotype machines used by court reporters to quickly record the dialogue in a courtroom. Over the years, various desktop and ...