For users of X, there are various tools available which can produce large Text. These include LyX , and many commercial word processors. 3.2 Aids for Those Who Can't Use Visual Output For someone who is completely unable to use a normal screen there are two alternatives Braille and Speech. Obviously for people who also have hearing loss, speech isn't always useful, so Braille will always be important. Also can be somewhat more convenient if you want to check the beginning of a sentence when you get to the end.
Braille is, however, much more expensive and slower for reading text.
Obviously, the more you use Braille, the faster you get. Grade II Braille is difficult to learn, but is almost certainly worth it since it is much faster. This means that if you don't use Braille for a fair while you can never discover its full potential and decide for yourself. Anyway, enough said on this somewhat controversial topic. Since these are at most 80 characters wide and normally 40 wide, they are somewhat limited.