The different layer of cloud computing are as follows:
i) SaaS: It is Software as a Service, and provides the users a direct access to the cloud application without the need of installing them on the computer.
ii) PaaS: It is Platform as a Service, and thus provides the application platform for the developers.
iii) IaaS: It is Infrastructure as a Service, and provides the infrastructure to the users in terms of hardware, such as the speed of the processor, memory, etc.
