This document provides an overview of cloud computing, including: - Definitions of cloud computing and why it is called "cloud" computing - A brief history and origins of cloud computing - Characteristics such as on-demand self-service, ubiquitous network access, and resource pooling - Advantages like lower costs, improved performance, and device independence - The three main cloud service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS) - The four types of cloud implementations: public cloud, private cloud, community cloud, and hybrid cloud

1. BY : Khalid agdmoun

2. Plan
 Introduction
 What is Cloud Computing?
 Why is it called ‘’Cloud Computing’’?
 History and Origins
 Characteristics of Cloud Computing
 Advantages of Cloud Computing
 Cloud service models
Software as a Service SaaS
Platform as a Service PaaS
Infrastructure as a Service IaaS
 Cloud implementation types
 Conclusion

3. Introduction

4. What is Cloud Computing?
“Cloud computing is a style of computing where
massively scalable IT-related capabilities are
provided as a service across the Internet to multiple
external customers”
“Cloud computing: A pool of abstracted, highly
scalable, and managed infrastructure capable of
hosting end-customer applications and billed by
consumption”
“Cloud computing is Webbased processing, whereby shared
resources, software, and information are
provided to computers and other devices (such as
smartphones) on demand over the Internet.”

5. What is Cloud Computing?
“Cloud computing is a style of computing where
massively scalable IT-related capabilities are provided
as a service across the Internet to multiple external
customers”
“Cloud computing: A pool of abstracted, highly
scalable, and managed infrastructure capable of
hosting end-customer applications and billed by
consumption”
“Cloud computing is Webbased processing, whereby shared
resources, software, and information are
provided to computers and other devices (such as
smart phones) on demand over the Internet.”

6. What is Cloud Computing?
“Cloud computing is a style of computing where
massively scalable IT-related capabilities are provided
as a service across the Internet to multiple external
customers”
“Cloud computing: A pool of abstracted, highly
scalable, and managed infrastructure capable of
hosting end-customer applications and billed by
consumption”
“Cloud computing is Webbased processing, whereby shared
resources, software, and information are
provided to computers and other devices (such
as smartphones) on demand over the Internet.”

7. What is Cloud Computing?
Cloud Computing
Computing and software resources that
are delivered on demand, as service..

8. What is Cloud Computing?

10. Why is it called “Cloud computing”
Cloud

11. History and Origins
Launches of Google App
Engine/Windows Azure Beta
2008 - 2009
Google App / Azure
2006
S3 Launches/EC2
2002
Launch of Amazon web services
1990
The first milestone for Cloud Computing
The arrival of Salesforce.com
1960
Supercomputers/Mainframe

12. Characteristics of Cloud Computing

13. Essential characteristics of Cloud Computing
On-demand
self-service
Flexible
pricing Pay per
use
Ubiquitous
network
access
Cloud
Computing
Rapid
elasticity
Resource
pooling

14. Common characteristics of Cloud Computing
• On-demand self-service
•
•
•
•
Ubiquitous network access
Resource pooling (advanced virtualization)
Rapid elasticity
Flexible pricing - Pay per use

15. Common characteristics of Cloud Computing
• On-demand self-service
• Ubiquitous network access
• Resource pooling (advanced virtualization)
• Rapid elasticity
• Flexible pricing - Pay per use

16. Common characteristics of Cloud Computing
• On-demand self-service
• Ubiquitous network access
• Resource pooling (advanced virtualization)
• Rapid elasticity
• Flexible pricing - Pay per use

17. Common characteristics of Cloud Computing
• On-demand self-service
• Ubiquitous network access
• Resource pooling (advanced virtualization)
• Rapid elasticity
• Flexible pricing - Pay per use

18. Common characteristics of Cloud Computing
•
•
•
•
On-demand self-service
Ubiquitous network access
Resource pooling (advanced virtualization)
Rapid elasticity
• Flexible pricing - Pay per use

19. Advantages of Cloud Computing

20. Advantages of Cloud Computing
•
•
•
•
•
•
•
Lower Computing Cost
Improved Performance
Reduced Software Cost
Instant Software Updates
Unlimited Storage Capacity
Increased Data Reliability
Device Independence and the “always on!, anywhere and any
place”
• Free From Maintenance and the “no-need-to-know”

21. Cloud service models

22. Cloud Service Layers

23. Cloud Service models - Definitions
Software as a
Service (SaaS)
• SaaS is a software delivery methodology that provides
licensed multi-tenant access to software and its
functions remotely as a Web-based service.
Platform as a
Service (PaaS)
• PaaS provides all of the facilities required to support
the complete life cycle of building and delivering web
applications and services entirely from the Internet.
Infrastructure as
a Service (IaaS)
• IaaS is the delivery of technology infrastructure as an
on demand scalable service.

24. Cloud Service models - Characteristics
Software as a
Service (SaaS)
• Scalable; Multi-tenant; Metadata driven
configurability
• Sometimes free; easy to use; good consumer
adoption; proven business models
Platform as a
Service (PaaS)
• Highly scalable; multi-tier architecture; Multi tenant
environments
• Developers can upload a configured applications and it
“runs” within the platform’s framework
Infrastructure as
a Service (IaaS)
• Offers full control of a company’s infrastructure; not
confined to applications or restrictive instances
• Sometimes comes with a price premium; can be
complex to build, manage and maintain

25. Cloud Service models - Containing
Software as a
Service (SaaS)
Platform as a
Service (PaaS)
Infrastructure as
a Service (IaaS)
Email
Business Processes
Industry Applications
Middleware
Web 2.0 Application Runtime
Development Tooling
Servers
CRM/ERP/HR
Networking
Database
Storage
Java Runtime
Data Center Fabric
Firewalls, load balancers

26. Cloud Service models - Examples
Software as a
Service (SaaS)
Platform as a
Service (PaaS)
Infrastructure as
a Service (IaaS)

27. Cloud Service models - Comparison

28. Cloud Service models

29. Cloud implementation types

30. Cloud implementation types

31. Public Cloud
• Owned and managed by service provider
• Made available to the general public or a large industry group

32. Private Cloud
•
•
•
•
Operated solely for an organization
May be managed by the organization or a third party
Limits access to enterprise and partner network
Retains high degree of control, privacy and security

33. Community Cloud
• shared infrastructure by several organizations which have
shared concerns
• May be managed by the organizations or a third party
• Costs are spread over fewer users than a public cloud but
more than a single tenant

34. Hybrid Cloud
• Composition of two or more clouds (private, community, or
public) bound together by standardized or proprietary
technology that enables data and application portability

35. Conclusion

36. Conclusion
Cloud Computing is the fastest growing
part of network based computing . It Provides
tremendous benefits to customers of all sizes:
simple users, developers, enterprises and all
types of organizations.

37. Thank
you!