Computers are an integral part of modern society and new technology has transformed the world. Communication today may be conducted using text messaging, email, mobile phones and video calls over the Internet using Skype. In the past, communication involved writing letters, sending telegrams or using the home telephones. Today, communication is instantaneous between people, and the new technology has transformed the world into a global village. The developments in computers and information technology have allowed business to be conducted in a global market.