Still Flexible

Computers also offer the option of text-to-speech. That means any text can be read aloud for you when you highlight the text and a designated key sequence is pressed. You can even set the speaking rate. This feature is extremely beneficial to students with reading disabilities or attention deficits. Computers also accommodate left and right handed users. Macintosh computers use a one button mouse and the student can put the mouse on the side of the computer that is easiest for them. A Microsoft two-button mouse was originally created for a right handed user, but you can switch the functions using the Mouse Properties Control Panel, therefore, it can accommodate any user. Both mice meet the needs of students who may have only a left hand or who can control only left-hand movements well enough to use the mouse. 

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