Educational software, or computer applications developed for the purpose of teaching and learning, arrived with virtually the first desktop computers. Education professionals recognized this potential early, and many schools acquired computers long before they were found in most American homes. Educational applications then greatly increased.

Educational software encompasses a variety of forms, costs, and purposes. Programs exist to teach individual preschoolers letter names, sounds, and grammar in English as well as other languages. Other programs introduce mathematical concepts for all grades, or are aimed at helping to develop good writing skills. Some programs, such as flight simulators, teach professionals the details of their jobs. Still other programs, called Learning Management Systems (LMSs), are designed for use by certain grades in entire school districts for teaching or evaluation purposes; these often include access to a software company's web site for comprehensive services.

At the college...