How can the Blind and Visually Impaired Handicapped use a computer system?
There are two categories of visual impairment; Those that are partially blind, and those that are totally blind. For those that are partially blind, they may make use of computer systems by means of screen magnification devices, as well as through special software that display text on the CRT through the use of extra large fonts. For those that are totally blind, they will be unable to use their sight as a means of input and will have to rely on other senses. This could be in the form of braille output devices, which converts text that is displayed on the screen into braille characters on a ‘touch-pad’. The user then ‘feels’ what is on the screen. Another approach is through the use of text-to-speech synthesizers. These text-to-speech synthesizers, working together with screen reading software packages seems to be the more common, and economical approach. When the blind needs to know what is displayed on the screen, he uses a screen reading software such as Vocal-Eyes. These are termin
