Question

Braille ____ are devices that can be attached to conventional computers (or built into handheld computers designed for visually impaired individuals) and that continuously convert screen output into braille form.

Answer 1

Braille Displays

Blind computer users can use braille displays to access info on a computer screen. Braille displays are able to do so by electronically lowering and raising different combinations of nylon pins or metal on its built-in brain cells. 
Brain Displays, which are refreshable, are able to display 80 characters from the screen.