There are four "guideline for principles of flexibility" that are taken into consideration to make a computer that meets the needs of as many people as possible. The first principle encourages designers to make products that provide choice in methods of use. This allows users to do the same function in different ways. For example, to delete a file on the computer, instead of using the mouse and dragging it to the recycle bin, users can press the buttons Shift + Delete to do the same function. The second principle is to accommodate left-and right-handed users. Most laptops have a mouse pad on it. Microsoft Windows has a two "mouse button" setting with the left button controlling most of the functions. However, you can switch the functions of the mouse buttons which helps students who may only be able to use one hand. Students with visual impairments will find the third principle of variations among the precision and accuracy of computer users beneficial. Enlarging the size of icons is a feature that will significantly help them when using a computer. Students who have difficulty with visual tracking will benefit from the fourth principle adaptability to users. One accommodation that helps these students is slowing down the speed of the mouse.
There are many more features that are provided on Microsoft Windows and Mactintosh OS computers. Microsoft Windows provides further accessibility features through Ease of Access Center and Macintosh OS through Universal Access.
Ease of Access Center
Universal Access
Resources of material:
Dell, A. G., Newton, D. A., & Petroff, J. G. (2012). Assistive Technology in the Classroom (Second ed., pp. 163-172). Upper Saddle River, NJ: Pearson.
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