Call-tutor, tool and medium

Now-a-days computer and technology play a prominent role in our daily life where we employ them if we understand that or not,  every aspect of living are employing technology to improve a product, to ease a way to do thing or to merely do something novel.  Technology affects every industry and work, and by that employing computer and technology in teaching didn’t become an option but a must.  To study how computers are used in language teaching is one of the important components of applied linguistics. In this regard, the present paper provides to offer a brief history of CALL, visionary goals and the roles of CALL as tutor, tool and medium.