The acronym CALL (Computer Assisted Language Learning) as stated by Chapelle (2001), was agreed upon at the 1983 TESOL convention to refer to the area of technology and second language teaching and learning. CALL was defined by Levy (1997) as 'the research and study of applications of computer in language teaching and learning', but Beatty (2003) shows awareness in the changing nature of CALL, and defines it as 'any process in which a learner uses a computer' resulting in the improvement of his/her language.Originally, CALL is a program derived from computer assisted learning with the aim to provide a tutorial program of language learning (Hartoye, 2008), but Egbert (2004) adds that CALL allows language learning in any context with, through, and around computer technologies. It is apparent from the definitions that the field of CALL involves the use of computer in language teaching and learning and its programs should entail different aspects of language learning processes via the computer. But CALL programs are necessarily determined by certain factors that shape the characteristics of any of its programs.