What is Cloud Computing

Supply and utilization of these services take place exclusively via defined technical interfaces and protocols .In simplified terms one can follow the concept can be described as: A part of the IT environment (in this context, such as hardware such as data center , data storage and software ) is on the user side not operated or be provided locally, but with one or more providers hired as a service usually located geographically far away.
https://thecustomizewindows.com/2012/02/cloud-computing-1/