Learning about the computer devices
Hard Drive [HDD/SSD]
A hard drive is a storage device which stores data and retreives digital information.
Touch Screen is an electronic visual display that reacts when you make contact with the device for example when using your fingers to type something in you will place your fingers on the screen and the screen will act how you want it to.
A monitor is an electronic visual display for computers. It is made from thin film transistor liquid crystal display which shows that the monitor is a modern one whereas old monitors are made from cathode ray tube which is as deep as the thickness of the actual monitor.