Cloud computing services
After explaining the different types of cloud computing, we should now have a look at how those services are provided. For that, we categorize them into three major types: public cloud, private cloud, and hybrid cloud.
Public cloud
We will start by introducing the public cloud. The public cloud, as its name suggests, is a publicly available cloud. Usually, a public cloud service is scalable on how much the user is willing to pay, either for resources or special services. Since it is on the cloud, users don't have to worry about hardware purchases, management, and maintenance. Most services provided as a public cloud are SaaS, with a small number as PaaS. Most of those services are available on demand. Usually, the users are charged for the resources they are using (CPU, memory, storage, Internet bandwidth) more than for the service itself.
Resources sharing on a public cloud appear when multiple users access the same service...
