The human creation of content and the human interface with computers has, for a century, been based upon the use of keyboards. Typewriters, then electric typewriters were used for all forms of written documents be it letters or books. This was used as the data entry for computers in the early days of mainframes.

When the first PCs came along in the 1970s, the keyboard was the method of interface. This was expanded with the introduction of the mouse. What followed was the obvious need to make the human-machine interface more appealing and accessible, so the graphic …