Difference between customer and consumer

Customer is the person who buys the product but it is not necessary that he is the one who will consume that product but on the other hand consumer is the person who is going to consume or use that product or services. For example, there is firm in which a new employee is hired but unfortunately there is no laptop available in firm to give him for office use. To fulfill this requirement IT department, get the orders from management to buy a laptop with particular specifications for the new employee. IT person buy the laptop and hand it over that that particular employee to use it for office purpose. In this example IT person is the customer who gave the money and buy that product but he is not using it himself. The new employee is the consumer because he is going to use the laptop. If a person buys any product or service, he is the customer to that shop or brand but if he also consumes that product or service the he is consumer too.