2. the computer

EXERCISE 2.8 [extra - not in book]

Identify input and output devices that could benefit users with special needs.


  • Speech input - suitable for physically handicapped people
  • Speech output - suitable for blind people or those with other vision problems
  • LCD screens - suitable for users with sub-optimal vision because they are clearer
  • Touchscreens - for users with lower than usual hand-eye coordination
  • Virtual reality input and output - for immersive treatment of phobias
  • Braille printer - hardcopy output for the blind
  • ... continue ...

Other exercises in this chapter

ex.2.1 (open), ex.2.2 (tut), ex.2.3 (open), ex.2.4 (tut), ex.2.5 (tut), ex.2.6 (tut), ex.2.7 (ans), ex.2.8 (ans), ex.2.9 (open)

all exercises for this chapter