Cloud computing is a type of Internet-based computing that provides shared computer processing resources and data to computers and other devices on demand.

1. Cloud Computing Services
by Cloudsyntrix New York

2. Contents
● Introduction (What and Why)
● Key characteristics
● Components (What is Virtualization?)
● Supported Application Framework
● Architecture
● Cloud APIs and Cloud Types
● Economics
● Privacy
● Google App engine and Amazon EC2
● Latest Trends
● Applications
● References

3. Introduction
Broadly, it is combination of three Computing concepts :
1.Grid Computing­Cluster of loosely coupled computers for a
common cause
2.Utility Computing­Packaging of computer resources as a
metered service
3.Autonomic Computing­Capable of self management

4. Contd..
Thus ,many cloud computing deployments ,
●depend on grids (as basic back end)
●have autonomic characteristics (self management)
●bill like utilities (viz. electricity)

5. What is cloud?
●The cloud is a computing service that charges you
based only on the amount of computing resources
we use.
●Pay as you go

6. Key Characteristics

Agility

Cost

Device and
location
independence

Multi tenancy

Reliability

Scalability

Security

Sustainability

7. Cloud Computing Architecture
●Software as a Service
●Platform as a Service
●Infrastructure as a Service
These 3 services encapsulate the basic 6
Cloud Computing Components
Next few slides will elaborate these 3
services..

8. Software as a Service
●Software as a service features a complete application
offered as a service on demand.
●A single instance of the software runs on the cloud
and services multiple end users or client
organizations.
●Eg: salesforce.com , Google Apps

9. Platform as a Service
●Platform as a service encapsulates a layer of software
and provides it as a service that can be used to build
higher­level services.
●2 Perspectives for PaaS :­
1. Producer:­ Someone producing PaaS might produce a
platform by integrating an OS, middleware,
application software, and even a development
environment that is then provided to a customer as a
service.

10. Infrastructure as a Service
●Infrastructure as a service delivers basic storage and
computing capabilities as standardized services over
the network.
●Servers, storage systems, switches, routers , and
other systems are pooled and made available to
handle workloads that range from application
components to high­performance computing
applications.

11. Cloud APIs
●One of the key characteristics that distinguishes cloud
computing from standard enterprise computing is
that the infrastructure itself is programmable.
●Instead of physically deploying servers, storage, and
network resources to support applications,
developers specify how the same virtual components
are configured and interconnected.

12. Cloud APIs contd…
●Including how virtual machine images and
application data are stored and retrieved from a
storage cloud.
●They specify how and when components are
deployed through an API that is specified by the
cloud provider.

13. Public Clouds
● Public clouds are run by third parties, and
applications from different customers are likely to be
mixed together on the cloud’s servers, storage systems,
and networks.
●Public clouds are most often hosted away from
customer premises, and they provide a way to reduce
customer risk and cost by providing a flexible, even
temporary extension to enterprise infrastructure.

14. Privacy

Encrypt data at rest

Encrypt data in transit

Strong authentication

Cryptography and more secure algorithms

Manage access right holder