International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
In an era when IT and IT-devices are all around one and have taken various forms, like desktop, portable laptop, handheld mobile and PDAs, touch-screen based ATMs and tablet PCs etc, the Human Computer Interaction (HCI), the way to interact with these devices, also need to take new turns to make them successful. HCI plays a very important role because at the end it is end-user i.e. client or consumer of device who matters most and it is the HCI system which is most close to client or consumer. For IT-devices discussed above the people have different types of Human Computer Interaction system e.g. keyboard, mouse, touch screen etc.