CLOUD COMPUTING

PRESENTED BY : ARUN YADAV

introduction

Cloud computing is location-independent computing, whereby shared servers provide resources, software, and data to computers and other devices on demand.

What is cloud computing ??

HISTORY The concept was coined by John McCarthy in 1960.

The term cloud came into commercial use in the early 1990s generally refers to large ATM network.

By the 21st century the real concept of “cloud computing” has appeared most focus was on SaaS.

In 1999 , Saleaforce.com was established by Marc, Parker and his fellows.

IBM extended the concept in 2001.

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Application Programming Interface

Device and Location Independence

Virtualization

Reliavility

Low Maintinance

High Sequrity

High Performance

Characteristics of Cloud Computing

Types of Cloud Computing

Private Cloud

Public Cloud

Hybrid

CloudCommunity

Cloud

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Private Cloud - The cloud infrastructure is operated solely for an organization

Public Cloud – Cloud computing through off-site third-party provider.

Hybrid Cloud – Mix of Coud models. Normally used for archiving and backup functions

Community Cloud - Several organizations have similar requirements and seek to share the cloud infrastructure

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Service Modals

Cloud computing providers offer their services according to several fundamental models

Infrastructure as a service (IaaS)

Platform as a service (PaaS)

Software as a service (SaaS)

This is the base layer of the cloud stack.

It serves as a foundation for the other two layers, for their execution. The keyword behind this stack is Virtualization.

Let us try to understand this using Amazon EC2. In Amazon EC2 (Elastic Compute Cloud) your application will be executed on a virtual computer (instance). You have the choice of virtual computer, where you can select a configuration of CPU, memory & storage that is optimal for your application. The whole cloud infrastructure viz. servers, routers, hardware based load-balancing, firewalls, storage & other network equipments are provided by the IAAS provider. The customer buy these resources as a service on a need basis.

Infrastructure as a Service (IaaS)

Now you don’t need to invest millions of $$$ to get that development foundation ready for your developers. The PaaS provider will deliver the platform on the web, and in most of the cases you can consume the platform using your browser, i.e. no need to download any software.

PaaS  Layers • Cloud OS • Cloud Middleware

PaaS ExamplesGoogle app Engine and Window Azure are examples of Cloud OS. OrangesScape & Wolf PaaS are cloud middleware.

Platform as a Service (PaaS)

Software as a Service (SaaS)

• Next generation SaaS promises everything as a service over the internet.

• Cloud computing started with a similar premise.• A computing paradigm where there exists a

flexible set of computing resources across the internet.

This is the Top most layer of the cloud computing stack - directly consumed by end user – i.e. SaaS (Software as a Service).

Cloud Service Providers

Microsoft Google Amazon IBM Sales force ZOHO

Advantages of Cloud Computing

Lower computer costs.

Device Indipendence

Improved performance.

Unlimited storage capacity.

Increased data reliability.

Universal document access

Easier group collaboration

Disadvantages of Cloud Computing

Requires a constant Internet connection.

Features might be limited.

Cases and Samples

IBM

AMAZON

Microso

ft

Google

Blue Cloud:15 Nov 2007, IBM wants some of that Web 2.0 mojo. That is what is behind its announcement today of Blue Cloud, a set of “cloud computing” offerings that will be available to its corporate customers in the first quarter of 2008.

Windows Azure:The Windows Azure platform is a flexible cloud computing pleatform that lets you focus on solving business problems and addressing customer needs.

EC2:Amazon Elastic Compute CloudEC2 allows users to rent virtual computers on which to run their own computer applications.

App Engine:Offers users the ability to build and host web applications on Google's infrastructure.

Organisations using Cloud Computing

Data:-2013

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2012 2013 2014 2015 2016 2017300

600

900

1200

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201220132014201520162017

Axis Title

Axis Title

Source: Institute of Engineering and Technology, IHS © Graphic News

Conclusion

It Provides Tremendous benefits to Companies.

You Pay only for Services that you use. Cloud computing is now evolving like

never before. Cloud Computing is the fastest growing

part of IT but still has security issues and somewhat it is immature.

But definitely, over a period of time, Cloud Computing will become the most promising technology in next few years.

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It requires Good Internet Bandwidth. But We all Know, Country like India faces problems

of very low internet bandwidth. Today cloud computing is in its infant age but has

large scopes for the future. Cloud computing is the future model of IT.

Refrence

Google Wikipedia Amazon.com Salesforce.com

Thank you for attending !!!