This document discusses how computers and technology tools can be used for teaching and learning. It describes how computers can be used as teachers to present information, facilitate communication, manage instructional processes, and produce materials. It also outlines several major productivity tools like word processors, graphic tools, spreadsheets, databases, presentation software, and authoring software and how they can be used by both teachers and students. Finally, it defines assistive technology and describes different types that can aid those with motor, communication, visual, auditory, or cognitive impairments.