This document provides an overview of cloud computing, including its history, types, services, properties, pros and cons. Cloud computing stores and caches users' information on servers and clients accessible via the web. It has evolved from earlier technologies like grid and utility computing. There are three main types of cloud computing services - Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides hosted servers and data storage, PaaS provides platforms for application development, and SaaS provides applications to users. The cloud offers benefits like scalability, accessibility, and reduced costs, but also poses security and reliability risks depending on internet connections.

2. OUTLINE:
• WHAT IS CLOUD COMPUTING??
• HISTORY
• WHY CLOUD COMPUTING???
• PROPERTIES OF CLOUD COMPUTING
• TYPES OF CLOUD COMPUTING….
• SERVICES PROVIDED BY CLOUD
COMPUTING
• PROS & CONS

4. CLOUD COMPUTING
It is a paradigm in which information is
permanently stored in servers on the internet
and cached temporarily on clients that include
desktops,table computers,notebooks,Wall
computers,Handhelds entertainment centers
etc.
It puts customers information and or
applications in a virtual “cloud” that can be
accessed through the web.
Users do not have or need knowledge, control,
ownership in the computer infrastructure

5. Cloud computing is simply a
buzzword used to repackage grid
computing and utility computing,
both of which have existed for
decades.”

6. Evolution from Grid to Cloud Computing

7. Traditional Software Cloud computingVs

9. • Public Cloud: The services are delivered to
the client via the Internet from a third party
service provider.
Example: Amazon

10. • Private Cloud: These services are managed and
provided within the organization. There are less
restriction on network bandwidth, fewer security
exposures and other legal requirements compared
to the public Cloud.
Example: HP Data Centers

11. It is a combination of services provided by the Private and
public cloud
Example:
–ERP in private cloud
–Sales & Email in public

12. User centric
 Accessible
 Intelligent
 Programmable
Cloud computing is
PROPERTIES
FEATURES
Reliability
Scalability
Security

14. IAAS (Infrastructure as a service)
• Offers capacity for rent, basically hosted data
centers and Servers
• An evolution of web site and server hosting
services provided by VPS
Examples:
– Verizon's CAAS (Computing as a service)
– AT&T (Hosting & Storage)
IAAS

15. PAAS (Platform as a service)
• Platforms enable application developers
to host their services
Example:
– Google’s App Engine
– Amazon E2C
– Microsoft azure
PAAS

16. • SAAS – Software as a service
• The application itself is provided
by service provider
Examples:
– ENTERPRISE: SalesForce.com, WebEx,
Officelive
– USER MAIL: gmail, Hotmail, Yahoo
– USER PICS: flickr, picasa
SAAS

17. • Amazon
• Microsoft windows Azure
• Savvis
• Google App Engine
• Vmware cloud
• Rack space
• Go grid

18. Cloud success stories

19. Future Educational Uses
• An expansion of Microsoft live@edu
• More useful spending of technology budgets
• Classroom collaboration
• Google Docs
Wide Spectrum of Usage
BitTorrent,Skype,LinkedIn,YouTube
,Google,Microsoft,Forum,Blog‐spa
ce,Website Hosting , FaceBook,
Yahoo

20. • Reduced Hardware equipment for
end users
• Improved Performance
• Lower Hardware and Software
Maintenance
• Instant Software Updates
• Accessibility
• Pay for what we use
• Security Issues
• Internet connection
• Features may be limited
• Location of Servers
• Speed

21. CONCLUSION:
Finally ,cloud apps don’t eat up your valuable IT resources
Thus cloud computing provide a super-computing power.
This cloud of computers extends beyond a single company or
enterprise.
The applications and data served by the cloud are available to
broad group of users, cross-enterprise and cross-platform

22. “Cloud computing is a simple idea ,but it
can have huge impact on our business.”