Page 6 - Cloud Computing (Elective – III)

PaaS (Platform as a Service)

In PaaS user manages applications along with data. Lot of times the user
wants to launch and maintain their own applications over the cloud which

is where PaaS comes into the picture. All the Hardware, Networking, O/S
needs are met by the service provider. The user can use any programming
language of choice. PaaS services are cheaper compared to SaaS.

IaaS (Infrastructure as a Service)
In IaaS based service hardware, Virtualization and networking services are
provided by the vendor while the user takes care of OS, applications, and

data.

2. Deployment Models
In the above section, we have already learned about the introduction to cloud

computing and about service model, now we are going to know about the three
kinds of Deployment models: Public Cloud, Private Cloud, and Hybrid Cloud

1. Public Cloud
o Service Provider makes resources such as Compute, storage, and
applications available to the general public over the internet.
o Any user can log in and use these services.

o You pay for the number of resources you use.
o Users have lesser control over their data.