This document discusses the history and uses of Computer Assisted Language Learning (CALL). It explains that CALL has evolved from using computers as tutors for drills and practice, to viewing them as tools for writing, presenting, researching, and global communication. The computer can serve various roles, from offering language drills to stimulating discussion and interaction, or acting as a medium for authentic materials online. CALL approaches have shifted from behaviorist repetition drills to those based on communicative language teaching.