This document discusses computer assisted instruction (CAI), which uses computers to aid the teaching and learning process. It describes different types of CAI, including drill and practice, tutorials, simulations, instructional games, and problem solving. Drill and practice focuses on increasing fluency, tutorials introduce new content, simulations mimic real processes, games are aimed at younger learners, and problem solving fosters thinking skills. CAI has advantages like interactivity and immediate feedback, but also disadvantages like cost and not addressing all learning outcomes. The document outlines different levels and approaches to integrating CAI into courses and instruction.