| Alternate
Input Devices |
|
|
|
|
|
|
|
|
|
| A HeadMaster
is a head |
||||||||
| pointing
system that |
||||||||
| provides full
mouse |
||||||||
| control to
persons who |
||||||||
| cannot use
their hands, |
||||||||
| but do have
good head |
||||||||
| control. |
||||||||
|
|
|
| HeadMaster
with |
||
| puff switch |
||