Refreshable Braille Display
How to pronounce:
rɪˈfrɛʃəbl breɪl dɪsˈpleɪ
Definition:
also called braille terminal; is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Blind computer users, who cannot use a normal computer monitor, use it to read text output. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.