In this area, input devices, output devices and software can be found, which adapt computer terminals for people with disabilities.

Input devices and input aids:

  • Keyboards, mice and joysticks are designed so that they can be operated by people with one hand, with disabilities or by the blind
  • Virtual keyboards on the screen (on-screen keyboard) enable alternative computer control via voice or eye movement
  • Offer simple user interfaces

Output devices and output aids:

  • Display information from a computer via tactile signs
  • Provide acoustic output information from a computer through speech or other sounds
  • Software can read or enlarge displays
  • Printer can print tactile information on special paper

Subsections of: Computers and Software

Portable computers and personal digital assistants (PDA)

Computers that can be powered with batteries and thus can be used anywhere

Input devices for computers

Included are, e.g., Braille keyboards.

Alternate input devices

Included are, e.g., optical scanners, speech recognition units, touch sensitive boards, data gloves and brain-computer interfaces.

Input accessories

Devices for linking the input systems with the computer

Input software

Included are, e.g., one-finger drivers and screen keyboards.

Output devices for computers

Devices that display information from a computer visually and accessories that enlarge or otherwise enhance text and images on a computer monitor

Tactile computer displays (braille displays)

Devices that display information from a computer tactilely


Included are, e.g., Braille printers/plotters.

Audible terminals

Devices that display information from a computer audibly through speech or other sound

Special output software (screenreader)

Included are, e.g., software that enlarges the text and graphics displayed on a computer screen, software that reads the display and converts it to speech (screen reader).