Inventors designed some early typing machines to assist people with vision impairments with writing. With the invention of typewriters that allowed users to see their words as they typed, people could generate text without the skills and equipment involved in typesetting.
Read more: What is the purpose of the typewriter? | Answerbag http://www.answerbag.com/q_view/1962358#ixzz2r3qOr3Vs