Understanding Cloud Computing

TABLE OF CONTENTS

1 Introduction 5

2 Cloud Computing 7

2.1 Why Cloud Computing 7

3 How Cloud Computing Works 11

3.1 Cloud Service Models 12

3.1.1 Infrastructure as a Service (IaaS) 13

3.1.2 Platform as a Service (PaaS) 13

3.1.3 Software as a Service (SaaS) 15

4 Cloud Deployment Models 16

4.1 Private Cloud 16

4.2 Public Cloud 17

4.3 Community Cloud 18

4.4 Hybrid Cloud 19

5 Challenges in Cloud Computing 20

6 Conclusion 22

7 Glossary 23

8 References 24

LIST OF IMAGES

Fig 1: Cloud Computing 5

Fig 2: Why Cloud Computing 8

Fig 3: Working of Cloud Computing 11

Fig 4: Cloud service Models 12

Fig 5: Platform as a Service (PaaS) 14

Fig 6: Software as a Service (SaaS) 15

Fig 7: Private Cloud 16

Fig 8: Public Cloud 17

Fig 9: Community Cloud 18

Fig 10: Hybrid Cloud 19

Fig 11: Benefits and Challenges in Cloud Computing 20

1 Introduction

Cloud Computing is the term which refers to the usage of network remote servers hosted on the internet. The user can either store the information or can use the available service via laptop, desktop, smartphone, etc. It is some third person who will run the computer and the software where the client/user will use their service and focus only on their own delivery.

Fig 1: Cloud Computing

To understand Cloud Computing in a better way, just think of having a cup of coffee in a coffee shop. You are going to a coffee shop, ordering for a cup of coffee, paying the money and drinking it. Are you worrying about how much you used the coffee maker or what type of Coffee machine is this? Of course not, because you went there just for a cup of coffee. Only based on the service provided in the coffee shop, the quality/taste and the cost, you may go back to the same shop. T...

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...estment savings with Cloud Computing, this technology will grow and evolve. The Cloud vendors will also continue to grow and will provide the new services to the Cloud users. Thus Cloud Computing will provide many benefits over conventional approaches to IT provisioning.

7 Glossary

• IaaS - Infrastructure as a Service

• PaaS - Platform as a Service

• SaaS -Software as a Service

• Middleware – Software that connects the application with the server

• Service Provider – A company or vendor who provides the Cloud service to the client

8 References

• http://searchcloudcomputing.techtarget.com/definition/cloud-computing

• http://www.howstuffworks.com/cloud-computing/google-cloud.htm

• http://blog.appcore.com/blog/bid/168247/3-Types-of-Cloud-Service-Models

• http://www.cloud-competence-center.com/understanding/cloud-computing-deployment-models/