The computer revolution has brought many changes to the world, changes that encompass all manners and their roles. Computers have been connected to every industry, be it sports, airlines, road cameras, cars, businesses, etc. Technology plays an important role in changing our lifestyle. Advantages of Human-Computer Interaction • Computer Change:- Internet, PC and Web Browser were three The great inventions of HCI without these three would not have been possible today. Computers affect our daily activities, from buying food to paying our bills. In past years we had to wait a long time for billing, but nowadays it's fast and saves us a lot of time. The faces of supermarkets have been various computers known as POS installed to scan products and do automatic tabulation which is much better than the old manual billing. lives, we have learned to interact with computers using keyboard, mouse and desktop. We started with Microsoft Excel for calculations, Word for document, presentation and virtual desktop through GUIs, but GUIs have changed the way of interaction between computer and user. Now we have a spell checker in Word that corrects our spelling without us realizing it, undo the restore options. • The handset to the world in our hand (Harper, 2008) stated that over the past 20 to 25 years, the growth of mobile users has increased rapidly. . Cell phones are the best means of communication in the world. Nowadays, it is not just a mobile phone, but it has many other benefits, such as entertainment, media, etc. Smartphones today come with many different applications such as music player, GPS, news applications, calendars, games, etc. .. middle of paper ...... permanently stored as digital video. Full references:-• TR Richard Harper. (2008), Being Human: Human-Computer Interaction in 2020 (pp. 1-51). Cambridge: Microsoft Research Ltd. • Narwani, A. (2013). Information and communication technologies. Describe the role of HCI with its advantages and disadvantages. Accessed May 2014 from http://itcsworld.blogspot.com.au/2013/12/describe-role-of-hci-with-advantages.html• Fakhreddine Karray, MA (2008). INTERNATIONAL JOURNAL ON SMART SENSING AND SMART SYSTEMS. Human-computer interaction: overview of the state of the art, 1, 137-159• Robinson, P. (2011). New face of human-computer interaction, accessed May 14, 2014 at http://www.cam.ac.uk/research/news/the-new-face-of-human%E2%80%93computer-interactions• Andreas Holzinger, K.M. (2009). HCI and usability for e-Inclusion. Chennai: Springer.