Cloud Computing- Sreehari S

1. By
Sreehari S
PGT(Computer Science)
KV Khammam

2. contents
Defenition
Ways in which cloud computing is acheived
SaaS
PaaS
IaaS
Types of infrastructure Allocation
characteristics

3. Objectives
To make you understand
a)What is cloud computing?
b)What is SaaS,PaaS & IAAS?
c)What is private, public and Hybrid cloud?
d)What are the characteristics of Cloud
computing?

4. What is Cloud Computing?
Accessing of

applications

computing power and

Storage
over internet.

5. How cloud computing is acheived?
By Providing three layers as service

Applications

Platform

Infrastructure

6. Software as a Service
Off the Shelf applications are accessed over
internet.
We can use the applications without installing it
on the local machine.
Examples

http://sheet.zoho.com -word/spreadsheet
processor

http://pixlr.com-online Image editor

7. Platform as a Service

Provides environment and tools for creating
online applications.

Our own created applications can be
uploaded on the cloud.

We are not concerned about the underlying
architecture the application is running.
Example:
google's App Engine

8. Infrastructure as a Service

Allows existing applications to be run on
cloud supplier's hardware.
We can host our own applications with our
own system architecture and requirements.
Hardware is provided by Infrastructure
Service provider
Example
Amazon web services
Rackspace

9. The Ways in which infrastructure
is allocated

Private cloud

Public Cloud

Hybrid Cloud

10. Private Cloud

The cloud infrastructure is operated solely
for an organization. It may be managed by
the organization or a third party and may
exist on premise or off premise.

11. Public cloud
The cloud infrastructure is made available to
the general public or a large industry group
and is owned by an organization selling
cloud services.

12. Hybrid cloud

The cloud infrastructure is a composition of
two or more types of clouds
Example
Computing capability in private cloud and
storage in public cloud.

13. Characteristics of Cloud
Computing

With cloud computing, organizations can
have on-demand self-service for computing
capabilities, such as server time and
network storage when needed, and through
a single provider.

computing resources are pooled to serve
multiple consumer

14. 
Services are available through broad
network access.

Cloud capabilities can be provided to the
subscriber rapidly and elastically, allowing
the subscriber to either increase or
decrease services.

15. DISCUSSION
“I am storing some data on Google Drive”
Is it SaaS,IaaS or PaaS?

16. Thank you