Cloud Computing is the on-demand delivery of computing power, database, storage, applications, and other IT resources through a cloud service platform via the Internet with a pay-as-you-go pricing model.
Top players in the cloud business:-
AWS- Amazon Web Services
Microsoft Azure
GCP- Google Cloud Platform
Alibaba Cloud
Oracle
IBM
VMWare
RackSpace
Characteristics of Cloud:-
On-Demand Self Service
Broad Network Access
Scalability
Resource Pooling
Measured Services