This document discusses the history and principles of computer assisted language learning (CALL). It traces CALL back to language laboratories in the 1960s and key developments like the creation of PLATO multimedia software in the 1990s. The document also outlines 10 principles of CALL, including that it should be learner-centered, adaptive, engaging, and focused on research-backed methods to help learners learn better. It concludes that CALL has evolved along with changes in language teaching methodology and pedagogy.