Swarthmore's Computer Science Department offers courses that emphasize the fundamental concepts of computer science, treating today's languages and systems as current examples of the underlying concepts. The computer science curriculum is designed to provide students with a flexible set of computing choices that can be tailored to satisfy various interests and depths of study. By educating students to think conceptually, we are preparing them to adapt to developments in this dynamic field. The study of computer science within a liberal arts environment hones students' skills in problem solving, critical thinking, and clear and concise communication. Developing these skills, along with the technical training necessary to work with computers, creates students well prepared for graduate school or employment in the field.