This document discusses several models of second language acquisition and how individual differences can impact computer-assisted language learning. It analyzes factors like age, attitudes, motivation, intelligence, language aptitude, previous knowledge, familiarity with computers, interaction with native speakers, and language used with community. While studies have found different relationships between these variables and language learning, most agree the variables interact with each other and significantly affect learning outcomes, though further research is needed to understand their specific impacts in different contexts.