Cloud computing is a model for enabling ubiquitous, convenient access to a shared pool of configurable computing resources like networks, servers, storage, applications and services that can be rapidly provisioned and released with minimal management effort. It allows users to access applications from anywhere using a web browser while software and data are stored on remote servers. Common types of cloud computing include infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS). Major cloud providers include Amazon Web Services, Microsoft Azure, Google Cloud and Dropbox.

1. CLOUD COMPUTING

2. DEFINITION
Cloud computing is an emerging computing technology
that uses the internet and central remote servers to maintain
data and applications.
Cloud computing is the delivery of computing as
a service rather than a product, whereby shared resources,
software and information are provided to computers and
other devices as a utility over a network.

3. DEFINITION
Cloud computing is a model for enabling ubiquitous, convenient,
on-demand network access to a shared pool of configurable
computing resources (e.g., networks, servers, storage,
applications, and services) that can be rapidly provisioned and
released with minimal management effort or service provider
interaction

4. Why Cloud- As basic Business Scenarios?
Fast Application Deployment
Hassle Free Maintenance
Better Resources Utilization
Platform Independent, Security, Scalability

5. Evolution of Computing

7. Cloud computing providers deliver applications via the internet, which are
accessed from a Web browser, while the business software and data are stored
on servers at a remote location.

8. Basic components of Cloud
 Client computers
 Cloud Network
 Distributed computing servers
 Data storage servers/data centers
 Cloud API-interface to avail cloud
services

9. Opportunities of Cloud
Computing
 End Customers(Saas)
 Business consumers(S/P/I as a
service)
 Developers and Independent software
Vendors(Iaas and Paas)

10. Various Technologies
 Peer to Peer
 Client Server model
 Grid Computing
 Utility Computing
 Virtualization

11. Peer to Peer
 Is a network of hosts in which resource
sharing ,processing and communication
control is decentralised
 All clients are equal
 users are authenticated by each
individual workstation.

13. Client Server model

14. Grid Computing
 Consists of collection of distributed and
heterogeneous resources can be used
to execute large scale applications
 Decentralised approach

15. Grid Computing

16. Utility Computing
 Utility is the packaging of computing
resources, such as computation,
storage and services, as a metered
service
 Is one of the IT service models provides
good flexibility and economy
 No need to invest lot of money to
purchase new computing Infrastructure

17. Virtualization
 Virtualization process create virtual image of
computing resources and managing it using
hypervisor
 Was designed for sharing hardware to reduce
cost involved in computing

18. Key Drivers(Features) of Cloud
Computing
 On demand services/self service
 Pay per use pricing model
 Quality of service
 Elasticity
 Customization
 Secure_storage
 Scalability
 Low capital

19. Layers
How Does My Business Access the Cloud?

20. Delivery Models
Software as a service(SAAS)
Platform as a service(PAAS)
Infrastructure as a service(IAAS)

22. e.g., Web browser
SaaS, e.g., Google Docs
PaaS, e.g., Google AppEngine
IaaS, e.g., Amazon EC2,Digital
Ocean
Cloud computing architecture

23. Applications-As-A-Service (AaaS) /Software-As-A-Service (SaaS)
Leverages the Cloud in software architecture
Eliminates the need to install and run the application on the customer's own computer
Platform-As-A-Service (PaaS)
Delivers a computing platform and/or solution stack as a service
Facilitates deployment of applications without the cost and complexity of buying and
managing the underlying hardware and software layers
Infrastructure-As-A-Service (IaaS)
The delivery of computer IasS, typically platform virtualization
The servers in the data center are the computer hardware and/or computer software
products that are specifically designed for the delivery of cloud services

28. Examples of Cloud Computing
There are several large companies that are dedicated to providing these
services
 Google Apps: provides the service of business applications such as Gmail,
Google Talk, Google Calendar and Google Docs, etc.
 Azure: Microsoft provides operating system services, hosting, systems
development.
Amazon Web Services: The services offered are the Amazon EC2 , Amazon
S3, Simple DB , Amazon SQS .

29. Deployment Models
Public cloud
Community cloud
Hybrid cloud
Private cloud

30. A public cloud is one based on the standard cloud computing
model, in which a service provider makes resources, such as
applications and storage, available to the general public over the
Internet.
Private cloud is infrastructure operated solely for a single
organization, whether managed internally or by a third-party and
hosted internally or externally.
Hybrid cloud is a composition of two or more clouds (private,
community, or public) that remain unique entities but are bound
together, offering the benefits of multiple deployment models.
community cloud in computing is a collaborative effort in
which infrastructure is shared between several organizations from a
specific community with common concerns (security, compliance,
jurisdiction, etc.), whether managed internally or by a third-party
and hosted internally or externally

33. Access to information and services anywhere.
Free and pay-as-user needs
Companies with ease of scalability
Processing and storage capacity without installing machines locally
Virtualization and Multitenancy
Reliability and security
Elasticity and Maintenance
Software Delivery
USES and Benefits

34. Cloud Computing services
Anything as a Service(Xaas)
XaaS term used for anything (i.e. X) as a service for cloud
Computing it stands for anything or everything

35. Examples of XaaS
Software as a service(SaaS)
Platform as a service(PaaS)
Infrastructure as a service(IaaS)
Business Process as a Service(BPaaS)
Security as a Service(SecaaS)
Management as a Service(MaaS)
Storage as a Service(STaaS)
Database as a Service(DBaaS)
Network as a Service(NaaS)
Disaster Recovery as a Service(DRaaS)
Desktop as a Service(DaaS)

36. Advantages
 On demand services/Self service
 No initial set up cost
 Pay per use pricing model
 Elasticity and flexibility

37. Infrastructure as a service
 Iaas provides following computing resources
 Network Architecture
 Server
 Processor(CPU)
 Data storage Drive/Virtual Data centres(VDC)
 Cloud hosting servers

39. Advantages of IaaS
 Resource scalability
 Hardware on Rent
Examples of Iaas Services
Amazon EC2
Rack Space
Go Grid
Digital Ocean

40. Platform as a service
 Paas provides following computing resources
 Development tools(Dot.NET,Java etc.)
 Database management systems
 Web servers softwares
 Operating system
 Support software
 Hosting Software

41. Platform as a service
Providers
 Microsoft Azure
 Google Apps Engine
 SalesForce

42. Database as a service
 DBaas provides following software services
 SQL Based
 Oracle Databases
 IBM DB2
 Ingres Databases
 Postrege SQL
 MySQL
 No SQL based platform
 Hadoop
 CounchDB

43. Database as a service
Providers
 Amazon EC2
 SQL Azure
 Google Cloud SQL/Google App
Engine
 BitScan(mongoDB,mySQL)

44. Software as a service
 Saas provides following computing resources
 Mobile Apps
 Web browser
 Business Apps
 Examples
 One Drive
 Google drive
 Gmail
 Drop box
 Linkedn

45. Software as a service
Providers
 Google
 SalesForce.com
 NetSuite
 ConcureTechnologies

46. Cloud Computing Providers
 AWS
 Google Apps Engine
 Microsoft
 Salesforce.com
 Rackspace

47. Amazon Web Services
 Public Cloud Service provider
 AWS is a IaaS provider developed in 2006
 Also called as EC2
 Amazon Elastic Compute Cloud (Amazon EC2) provides scalable computing
capacity in the Amazon Web Services (AWS) cloud

48. Amazon EC2 provides the
following features:
 Virtual computing environments, known as instances
 Preconfigured templates for your instances, known as Amazon Machine
Images (AMIs),
 Various configurations of CPU, memory, storage, and networking capacity for
your instances, known as instance types
 Secure login information for your instances using key pairs
 Storage volumes for temporary data that's deleted when you stop or
terminate your instance, known as instance store volumes
 Persistent storage volumes for your data using Amazon Elastic Block Store
(Amazon EBS), known as Amazon EBS volumes
 Multiple physical locations for your resources, such as instances and Amazon
EBS volumes, known as regions and Availability Zones
 A firewall that enables you to specify the protocols, ports, and source IP
ranges that can reach your instances using security groups

49. Digital Ocean
 Digital Ocean, Inc. is an American cloud infrastructure provider
headquartered in New York City with data centers worldwide. founded in
2011. Digital Ocean provides developers cloud services that help to deploy
and scale applications that run simultaneously on multiple computers.

50. Google App Engine(PaaS)
 Google App Engine is a platform as a service (PaaS) cloud computing platform
for developing and hosting web applications in Google-managed data centres

51. Salesforce.com
 Salesforce.com is an American cloud computing company
headquartered in San Francisco, California .
 Though its revenue comes from a customer relationship
management(CRM) product.

52. Dropbox is a file hosting service operated by American company Dropbox, Inc., headquartered
in San Francisco, California, that offers cloud storage, file synchronization, personal cloud, and
client software. Dropbox was founded in 2007, by MIT students Drew Houston and Arash
Ferdowsi, as a startup company
Dropbox

53. Examples of Cloud Computing
There are several large companies that are dedicated to providing these
services, promoting easy access to our information, lower costs,
scalability, and many features that makes us think of comfort we
provide, among them are:
 Google Apps: provides the service of business applications such as
Gmail, Google Talk, Google Calendar and Google Docs, etc.
 Amazon Web Services: The services offered are the Amazon EC2 ,
Amazon S3, Simple DB , Amazon SQS .
 Azure: Microsoft provides operating system services, hosting,
systems development.
 Rack space, a popular hosting company, Mosso is behind a company
which offers a basic hosting package and from this scaled as needed
(and not migrate servers). Rack space recently acquired Jungle Disk, a
popular client for Amazon S3 and that future will be integrated with
Cloud Files another Mosso service.

54. Access to information and services anywhere.
Free and pay-as-user needs
Companies with ease of scalability
Processing and storage capacity without installing machines locally
USES

55. The relative security of cloud computing services is
a contentious issue which may be delaying its
adoption. Some argue that customer data is more
secure when managed internally, while others argue
that cloud providers have a strong incentive to
maintain trust and as such employ a higher level of
security.
SECURITY