flag Introduction This work is for making students aware of computer technology. https://www.google.pt/search?q=computer&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjA6IbhxvXYAhXL1xQKHW9IADgQ_AUICigB&biw=1440&bih=794#imgrc=Ftpbcg0A9bS0HM: