It is a network of remote servers that are hosted on the Internet to manage, store and process data. It refers to the services that are provided by a collection of remote servers over a network. Until the 19th century, people produced their own electricity, connecting their house to windmill to run their own machines. Late in the 19th century, power plants were made to generate a huge amount of electricity in a single go and were then transmitted to every house.
Now we don’t need to run the power generator of our own and we can switch the light on by just a click. Cloud computing is doing the similar things to technology or computing what power plants used to do in the 1800s.