The hardware are the parts of computer itself including the CPU and related microchips and micro-circuitry, keyboard monitors, cards such as graphic card, sound card, video card and so on.Together they are often referred to as a personal computer(PC).
The function of computer parts are as follows

1. monitor
   It is one of the part of computer which has its own value and its own function. If there is no monitor we can not imagine the computer and work can be done in computer.when we type the word in the keyboard it can seen in the monitor.the parts of computer i.e monitor it display the information on the screen so that we can easily understand and operate it without any difficulties.Monitors come in any sizes and types. Thus in simply we can say that Monitors is the screen on your computer that you look at when you set on the computer.