What is a refreshable Braille display?

DO-IT Factsheet #140
http://www.washington.edu/doit/Stem/articles?140

A refreshable Braille display is hardware connected to a computer that echoes screen text on a box that has cells consisting of pins that move up and down to create Braille characters.

[A refreshable braille display is shown above the title 'Refreshable Braille Display'.] Select the image to the right to view a captioned video clip, in Real Player format, about refreshable braille displays for individuals with visual impairments .

For more information about disability-related terms, consult Glossary of Disability-Related Terms. For information about adaptive technology, consult Working Together: People with Disabilities and Computer Technology or view the video by the same title.