This document provides an overview of cloud computing, including its key characteristics and advantages. It discusses how cloud computing uses shared resources over the internet rather than local servers or personal devices. Examples are given of different types of cloud services, including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Both advantages like low costs, scalability, and accessibility are covered as well as potential disadvantages around security and technical issues. A timeline of important developments in cloud computing is also presented.

1. Presentation By
Priyodarshini Dhar
M.Tech 1st Yr. CST, IIEST Shibpur
Introduction To

2. Cloud computing is an emerging computing technology.
It uses the internet and central remote servers.
It provides a set of shared computing resources applications, computing, storage,
networking, development, and deployment platforms as well as business processes.
The cloud is a metaphor for internet, based on how it is depicted in a network diagram.
Platform Storage
Cloud
Resources Provides
Business
Processes
Networking

3. Application(
E.g.
Microsoft
OfficeWord)
Operating
System
Hardware
Cannot use it.
Unsaved data
lost!!
Crashes!!
Crashes!!
Application
sits on a
cloud( e.g.
Googledocs)
data
saved in
the cloud!
Operating
System
Hardware
Earlier, In our Computers…
Crashes!
Crashes!
Connected
through the
internet
Now-a-days using cloud
computing…

4. Year Ideas/Work
1960 John McCarthy opined that "computation may someday be organized as a public
utility”
1969 J.C.R. Licklider gave the idea of "intergalactic computer network“ --- developed
ARPANET.
1999 Salesforce.com, pioneered the concept of delivering enterprise applications via a
simple website
2002 Amazon Web Services, which provided a suite of cloud-based services including
storage, computation.
2006 Amazon launched its Elastic Compute cloud (EC2) as a commercial web service
that allows small companies and individuals to rent computers on which to run
their own computer applications.
2009 Web 2.0 includes social networking sites, blogs,wikis,floksonomies,video
sharing sites, web applications, mashups etc.

5. CLIENT
SERVER
A cloud client consists of computer hardware
and/or computer software that relies on cloud
computing for application delivery.
E.g.: Mobile(Android, iPhone), PC
Applications(SaaS)
Platform(PaaS)
Infrastructure
(IaaS)
End User
Businessmen
Developer
Applications
Infrastructure
Platform
Requires

6. Cloud application services or " Software as a Service(SaaS) " deliver software as a
service over the Internet, eliminating the need to install and run the application on
the customer's own computers. E.g. Web Application(Facebook), Skype.
Cloud platform services or " Platform as a Service (PaaS) " deliver a computing
platform and/or solution stack as a service.
E.g. Web Application Framework
IaaS(Infrastructure as a Service), provides infrastructure such as hardware,
software, storage, networking, data center space, and various utility software
elements on request
E.g. GoGrid
The server layer consists of computer hardware and software products that are
specifically designed for the delivery of cloud services, including multi-core
processors, cloud-specific operating systems and combined offerings.

7. Open
Community
Controlled
Open
Community
Contractual
Open
Public/
Private
Hybrid
Private
Closed
Facebook,
Twitter, Google
Groups
IBM
SmartCloud
Enterprise,
Amazon Web
Services
QuickBook
Online,
Salesforce.com
Microsoft
Azure ,
HP Cloud
Services
Internal but
can be
implemented
by a third party
vendor
Simple
Password
Protection,
No Governance
Model
More Security,
Pay-per use,
No explicit
governance
High Security
provided,
Contract
signed by
Cust. For
service
Governance in
place
Highest level
of security
Explicit
governance
Secure
platform
Explicit
governance
Models
E.g.
Characteristics

8. Cloud Computing uses this technology.
Virtualization
Client Installed
Hypervisor
Software
Hypervisor Management
Software( VSphere)
E.g. Amazon EC2

9. Possible Costs
Server
Cost
Storage
Cost
Network
Cost
Disaster
recovery
Cost
Backup
Cost
Platform
Cost
Software
Maintenance
Cost
Infrastructure
Software Costs
A workload is an independent service, application, or collection of code that can
be executed.
In cloud computing, workloads are abstracted from their physical implementation,
i.e. they’re isolated from the hardware they are running on.

10. Types of
Workload
Batch
Workload
Not Time
Sensitive,
Process large
volume of
data
e.g. uploading
video
Database
Workload
Uses lots of
I/O cycles,
Most Common
type
e.g. Amazon
RD runs
mysql, oracle
Analytic
Workload
Require Real
Time
capabilities,
analyzes data
embedded,
e.g. social
media sites
Transactional
Workload
Automation of
business
processes like
billing
Test
Workloads
NOTE : Governance of workload management is
essential for success. The IT organization needs to
guarantee that corporate and governmental
regulations are adhered to.

11. Cost Efficient
Almost Unlimited Storage
Backup and Recovery
Automatic Software Integration
Easy Access to Information
Quick Deployment
Disadvantage of Cloud Computing:
 Security in the Cloud
 Prone to Attack
 Technical Issues

12. Thank you

13. John Wiley & Sons, “Cloud Services For Dummies®”, IBM
Limited Edition.
Doss Aravind, Nanda Rajeev, “Cloud Computing”.