Cloud computing presentation

SUBMITTED TO: MADE BY:
MISS.MANI BUTWALL POOJA CHOUHAN

AKSHRA GURAV.

Source: http://www.free-pictures-photos.com/

What is Cloud Computing?

“Cloud Computing is a paradigm in which information is
permanently stored in servers on the internet and cached temporarily
on clients that include desktops, entertainment centers, table
computers, notebooks, wall computers, hand-helds, sensors,
monitors, etc.” - 2008 IEEE Internet Computing

History
 Concept has existed since the 60s

 The term ‘Cloud’ originates from
telecommunications world of 1990s

 John McCarthy – proposed the idea of computation
being delivered as a public utility

 Ramnath K. Chellappa – first academic definition
 a computing paradigm where the boundaries of computing
will be determined by economic rationale rather than
technical limits

History
 Phases:
 Supercomputer
 Single machine with many processors plugged into it

 Cluster computing
 Collection of many smaller machines, each with a few number of
processors and independent memory

 Grid computing
 Expands techniques of clustering but computers that form the grid are
pooled from different administrative domains and applied to a common
task

Out-lines

 Introduction
 What is Cloud Computing
 History
 Architectural Layers & Cloud Services
 Software as a Service
 Platform as a Service
 Infrastructure as a Service
 Types of Clouds
 Why migrate to the Cloud?
 Effectiveness
 Limitations
 Issues & Concerns
 Conclusion

Architecture

 Most of the infrastructure consists of reliable services delivered through
data centers that are built on servers with different levels of virtualization
technologies

 Open standards and open software are critical to the growth and survival of
Cloud computing.

ROLE PLAYERS in the process
 1.CLIENTS

 2.DATA CENTER

 3.DISTRIBUTED SERVERS


Architectural Layers & Services

 Software as a Service
 Platform as a Service
 Infrastructure as a Service


 Software as a Service (SaaS)
 Term was coined by John Koenig in 2005
 Software application delivery model where the vendor
develops and operates the software application for use
by its customers via the internet

 Platform as a Service (PaaS)
 Provision of an environment that supports the life cycle
of web-application development available over the
internet
 Design
 Implementation
 Testing
 Deployment
 Hosting


 Infrastructure as a Service (IaaS)
 Delivery of basic storage and computing capabilities as
standardized services over the internet.
 Provides:
 Software
 Memory
 Data center space
 Storage

Out-lines
 Introduction
 What is Cloud Computing
 History
 Architectural Layers & Cloud Services
 Software as a Service
 Platform as a Service
 Infrastructure as a Service
 Types of Clouds
 Why migrate to the Cloud?
 Effectiveness
 Limitations
 Issues & Concerns
 Conclusion

Types of Clouds
 Public
 External (3rd party provider)

 Private
 Internal

 Hybrid
 Both

Role Players
Cloud Providers
Provide infrastructure to SaaS providers and Cloud
users
Amazon
Salesforce.com

SaaS Providers/Cloud Users
Companies and web application developers that make
use of resources made available to them by Cloud
Providers

SaaS Users
Naïve end-users. Have little or no knowledge about
what goes on behind the Clouds.

Outline
Introduction
What is Cloud Computing
History
Architectural Layers & Cloud Services
Software as a Service
Platform as a Service
Infrastructure as a Service
Types of Clouds
Why migrate to the Cloud?
Effectiveness
Issues & Concerns
Conclusion

Why migrate to the Cloud?
 Pay-per-use model
 Only pay for what you use

 Low cost of renting
 Amazon Scalable Service (S3) charges $0.12 to $0.15
per gigabyte per month

 Reduce runtime and response time
 Split operations among multiple computing nodes

Why migrate to the Cloud?
 Security
 Advanced encryption algorithms

 Transparency
 Just use the services, cloud maintenance is for the
providers to worry about

Effectiveness of Cloud Computing

New York Times’ TimesMachine
Convert articles from 1851 – 1922 to PDF format
Could have taken 7 weeks but with cloud
computing technology, project was completed in 24
hours.

Animoto
Scaled easily from 50 to 3500 servers in just 3 days

MapReduce
Divide and conquer method is distributed across
multiple computers.

Issues & Concerns
 Reliability
 Will the system be available all the time?
 January 2009: 40-minute outage at Salesforce.com
 Affected over 900,000 subscribers

 Portability
 Are services (business applications etc) and data
available from anywhere?

Issues & Concerns
 Privacy & Security
 Who has access to what resources
 What happens to your private data if
 You fail to pay your bills and your account is terminated?
 Government prompts your cloud provider for it?

Conclusion
 Cloud computing is here to stay

 There still exists the possibility of a single point of
failure, but probability of a failure is low because
of how well the infrastructure is implemented.

 It’s ability to expand and contract on demand
makes it very ideal for businesses

 http://www.youtube.com/watch?v=EzE6haADxRc&

Cloud computing presentation

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