This document provides an overview of cloud computing, including definitions of key cloud concepts. It defines cloud computing as on-demand delivery of computing resources like applications and data centers over the Internet on a pay-per-use basis. It describes the main types of cloud services: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). SaaS delivers applications via the web, PaaS provides platforms for application development, and IaaS provides virtual computing infrastructure and resources. The document also discusses reasons to use cloud computing and gives examples of public, private and hybrid cloud deployment models.

1. Cloud Computing
BASICS AND BEYOND

2. AGENDA
WHY CLOUD?
WHAT IS CLOUD?
WHERE CLOUD?

4. WHAt IS CLOUD
COMPUTING?

5. ”
“
Cloud computing, often referred to
as simply “the cloud,” is the delivery
of on-demand computing
resources—everything from
applications to data centres—over
the Internet on a pay-for-use basis.
Elastic resources Pay for use Self Service

6. Cloud computing services

7. SERVICES CONTD…

8. WHAT IS SAAS?
 Software as a service (or SaaS) is a way of delivering applications over the
Internet—as a service. Instead of installing and maintaining software, you
simply access it via the Internet, freeing yourself from complex software
and hardware management.
 SaaS applications are sometimes called Web-based software, on-
demand software, or hosted software. Whatever the name, SaaS
applications run on a SaaS provider’s servers. The provider manages
access to the application, including security, availability, and
performance.

10. PAAS
 PaaS (Platform as a Service), as the name suggests, provides you
computing platforms which typically includes operating system,
programming language execution environment, database, web server
etc.
 PaaS is analogous to SaaS except that, rather than being software
delivered over the web, it is a platform for the creation of software,
delivered over the web.
 Examples: AWS Elastic Beanstalk, Windows Azure, Heroku, Force.com,
Google App Engine, Apache Stratos

11. PAAS Platform

12. IAAS
 IaaS (Infrastructure as a Service), as the name suggests, provides you the
computing infrastructure, physical or (quite often) virtual machines and
other resources like block and file-based storage, firewalls, load balancers,
IP addresses, virtual local area networks etc.
 Examples: Amazon Web Services, Rackspace, Google Compute Engine

13. SUMMARY

14. Cloud computing deployment
models

17. WHERE CLOUD? UBIQUITY HAS A NEW
DIMENSION

18. E-MAIL COMMUNICATION
STORAGE
VIRTUAL OFFICE

19. WHY CLOUD?

40. Disadvantages

41. Up on cloud 9

44. HELPFUL DOCUMENTATION
• http://www.ibm.com/cloud-computing/in/en/what-is-cloud-computing.html
• http://www.business2community.com/cloud-computing/top-5-examples-cloud-computing-
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