Cloud computing is based on shared methods rather than local servers or devices to handle applications.

2. Contents
Introduction (What and Why)
Key characteristics
Components (What is Virtualization?)
Supported Application Framework
Architecture
Cloud APIs and Cloud Types
Economics
Privacy
Google App engine and Amazon EC2
Latest Trends
Applications
References

3. Introduction
Broadly, it is combination of three
Computing concepts :
1. Grid Computing-Cluster of loosely
coupled computers for a
common cause
2. Utility Computing-Packaging of computer
resources as a metered
service
3. Autonomic Computing-Capable of self
management

4. Contd..
Thus , many cloud computing deployments
 depend on grids (as basic back end)
 have autonomic characteristics (self management)
bill like utilities (viz. electricity)

5. What is cloud?
 The cloud is a computing service that charges you based only on
the amount of computing resources we use.
 Pay as you go

7. Key Characteristics
 Agility
 Cost
 Device and location Independence
 Multi tenancy
 Reliability
 Scalability
 Security
 Sustainability

8. Virtualization

9. Basic Components of Cloud Computing
Client
Services
Application
Platform
Storage
Infrastructure

10. Supported Application Frameworks
Platform Framework
Google App Engine Java Google Web
Tool kit, Python
Heroku Ruby on Rails
Azure Services
Platform
.Net

11. Cloud Computing Architecture
 Software as a Service
 Platform as a Service
 Infrastructure as a Service
These 3 services encapsulate the basic 6 Cloud
Computing Components
Next few slides will elaborate these 3 services..

12. Software as a Service
 Software as a service features a complete application
offered as a service on demand.
 A single instance of the software runs on the cloud
and services multiple end users or client organizations.
 Eg: salesforce.com , Google Apps

13. Platform as a Service
 Platform as a service encapsulates a layer of software
and provides it as a service that can be used to build
higher-level services.
 2 Perspectives for PaaS :-
1. Producer:- Someone producing PaaS might produce a
platform by integrating an OS, middleware,
application software, and even a development
environment that is then provided to a customer as a
service.

14. PaaS Contd..
2. Consumer:- Someone using PaaS would see an encapsulated
service that is presented to them through an API.
The customer interacts with the platform through the API,
and the platform does what is necessary to manage and scale
itself to provide a given level of service.
Virtual appliances can be classified as instances of PaaS.

15. Infrastructure as a Service
 Infrastructure as a service delivers basic storage and
computing capabilities as standardized services over
the network.
 Servers, storage systems, switches, routers , and other systems
are pooled and made available to handle workloads that range
from application components to high-performance computing
applications.

16. Thank You
Jacovia Cartwright