A comparative study of voice and graphical user interfaces with respect to literacy levels
Priyanka Chandel, Devanuj Kanta Balkrishan, Pankaj Doke · 2013
Visual and aural are two most important channels of information processing. While most of the interaction with computers have been designed around the visual channel, there are circumstances where voice based man-machine interaction becomes preferable, and in some cases, necessary, given that voice based interaction comes naturally to humans and can be used by illiterate people easily.