What is information technology? Describe any three fields of it?

                                                                                Information Technology:

We can define the term information technology as information technology is the merger of of computer and technology means the use of hardware. Or Information technology means the use of hardware, software, services and supporting infrastructure to manage and deliver information using voice data and video.
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Fields of Information Technology: 
Art:
Artists are using personal computers to generate and manipulate experimental images, sculptures for example can use personal computers to create models and experiment with variations before committing to an actual physical piece.
Energy:
Energy companies use computers to locate oil, coal, natural gas and uranium.
Agriculture: 
Computers have penetrated to farms. Farmers now use small computers purchased for less than the price of a tractor to help with billing, crop information, cost per acre feed combination and market price checks.