Estnoc Provide Access to Computing Resources and IT Services in a Simple and Scalable Way Cloud Computing in Switzerland is a general term for anything that has to do with the provision of hosting services through the Internet. These services are divided into three broad categories: Infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS). The name of cloud computing was inspired by the cloud symbol that is often used to represent the Internet in images and flow diagrams. The services in the cloud have three well differentiated features that differentiate them from modern hosting. On the one hand, charging is done according to usage, usually per minute or per hour; the service is elastic, since the user can use as much as he wants and at the moment he wants; finally, the service is achieved entirely by the earner (the consumer does not need anything except a personal computer and Internet access). The important innovations in virtualization and distributed computing, the great advances in the speed of access to the Internet and the widespread economic weakness have given a great boost to cloud computing.
The clouds can be private or public. Public cloud is the one that sells Internet facilities to any user. (Currently, Amazon Web Services is the main earner in a public cloud). Private clouds are a