List down the three basic clouds in cloud computing?

[Scott]

a) Professional cloud

b) Personal cloud

c) Performance cloud

[manoharparakh]

Based on a service that the cloud is offering, it is classified as:

IaaS (Infrastructure-as-a-Service)
PaaS(Platform-as-a-Service)
SaaS(Software-as-a-Service)
etc. (Storage, Database, Information, Process, Application, Integration, Security, Management, Testing-as-a-service.)