IBM or international business machines is one of the largest and fastest growing company, founded by Thomas J. Watson in 1911, and the present CEO since 2012 is virginia Ginni Rometty. It is also known as "Big BLue " b'cuz of its logo color. The company has made everything from mainframes to personal computers and has been immensely successful selling business computers. From the beginning, IBM defined itself not by selling products, which ranged from commercial scales to punch card tabulators, but by its research and development.