2. Computers have revolutionised life for
disabled people. They are used by:
Severely disabled people to
communicate
Dyslexic people
The blind and visually impaired
Those with learning difficulties.
The hardware may be standard
hardware, or it may be modified to the
specific needs of the disabled person.

3. Head mouse
The disabled person can move
their head, and the mouse
will behave on the screen just
like a normal mouse that we
move with our hand.
Eye-tracker
One such device is an eye
tracker, which allows an
individual to control a
computer cursor by moving

4. Electronic pointing devices
used to control the cursor on the screen
without use of hands. Devices used include
ultrasound, infrared beams, eye movements,
nerve signals, or brain waves. When used
with an on-screen keyboard, electronic pointing devices
also allow the user to enter text or data.
On-screen keyboards
provide an image of a standard or modified keyboard on
the computer screen that allows the user to select keys
with a mouse, touch screen, trackball, joystick, switch, or
electronic pointing device. On- screen keyboards
often have a scanning option that highlights
individual keys that can be selected by the user.
On- screen keyboards are helpful for
individuals who are not able to use a
standard keyboard due to dexterity or mobility
difficulties.

5. Talking calculators
Talking Calculator is a perfect Windows
based calculator for the blind computer
user. It is completely speech enabled.
Learning disabled can greatly benefit from
these simple devices, which relay
mathematics via audio. For those with
dyscalculia, such a gadget renders it much
easier to check and double-check assignments.
Switches
Usually attached to the head or a hand or on
wheel chair, switches allow users remote
access
to various computers and other devices with
far more ease than a
mouse or keyboard. Like many other

6. Reading tools and learning
disabilities programs
include software and hardware designed to
make text-based materials more accessible for
people who have difficulty with reading. Options
can include scanning, reformatting, navigating,
or speaking text out loud. These programs are
helpful for those who have difficulty seeing or
manipulating conventional print materials; people
who are developing new literacy skills or who
are learning English as a foreign language;
and people who comprehend better when
they hear and see text highlighted
simultaneously.