Flexibility in Use

The second principle of universal design, flexbility in use, has been incorporated in operating systems and can benefit students with disabilities tremendously. It is beneficial that computers allow users to choose how they would like to use it. For example, they can either use the mouse or the keyboard to control the computer. You may choose to use the keyboard if you find it hard to control a mouse. Students with fine motor skill difficulties, limited range of motion, or visual impairments who cannot see the mouse pointer on the computer screen may choose to use the keyboard instead of the mouse. However, if you find it difficult to remember the keyboard shortcuts, you may choose to use the mouse. Another beneficial feature is that computers can be controlled by voice. The user can speak commands into a microphone and the desired action will be performed. This feature is called Speech Recognition. Speech Recognition may help students with motor control issues, muscle weakness or fatigue, or students with vision impairments. 

Reference:
 Dell, A., Newtown, D., & Petroff, J. (2012). Assistive Technology in the Classroom.
              Upper Saddle River, NJ. Pearson Education Inc.

MOUSE!!!!