Lecture on Input Devices

This lecture focus to presentation on Input Devices. This lecture briefly explain some Input Devices like: Keyboard, Mouse, Touch screen, Light pen, Joysticks, Digital camera, Trackball, OMR, MICR, OCR, Video digitizer, Bar code reader, Scanner or digitizer and Voice or Speech input system. Here explain all of these devices with examples. Here also briefly discuss on Advantages and Disadvantages of OMR and Uses of bar codes.