Cloud computing refers to on-demand delivery of computer system resources, such as data storage, servers, software, analytics and more via the Internet. It provides hardware, software and networking services to clients from a third-party provider. Major developments in cloud computing occurred in the 1990s, with companies like Salesforce.com and Amazon introducing cloud-based services in 1999 and 2002 respectively. Cloud computing delivers resources through three main service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

1. CLOUD COMPUTING

2. Need of cloud computing

3. Cloud Computing is a general term used to describe a new class
of network based computing that takes place over the Internet,
•Cloud computing refers to on demand delivery of it resources
via the internet with pay as you go process.
•Using the Internet for communication and transport provides
hardware, software and networking services to clients
•Cloud computing is a platform as well as a software
application.

4. Who invented”Cloud computing”??
12/2/2016
There is no sole inventor .
John McCarthy however opined
"computation may someday be
organized as a public utility”.
Massive development took place in the
90’s.

5. Who introduced it??
 Salesforce.com in 1999.
 Delivered enterprise applications via a simple website
 Amazon Web Services in 2002.
 Provided a suite of cloud-based services including storage,
computation and even human intelligence through the
Amazon mechanical trunk

6. How??
On supply and demand basis.
This “supply and demand” stuff is nothing but
“cloud computing”.

7. Well……,What did they
actually deliver??
 They delivered ….computing to every individual user.

8. Cloud computing provides the following services
 Infrastructure as a service.
 IAAS
 Platform as a service.
 PAAS
 Software as a service.
 SAAS

9. Infrastructure as a service (IAAS)
Provides infrastructure for
individuals and
companies
It mainly provide
 Storage(data base)
 Servers(physical and
virtual)
 Maintenance
Companies offering IAAS
through cloud
computing
 Amazon
 GOGRID
 Sun
 B-Hive
12/2/2016

10. Different fields in IAAS
Private hosting
Dedicated
hosting
Hybrid hosting Cloud hosting
IAAS

11. Platform as a service(PAAS)
 Provides environment and set of tools for creating new
online apps.
 Users can create their own apps using coding languages
 Google app engine
 Microsoft azure platform
 Sales force-”force.com”.
Companies offering PAAS

12. Software as a service(SAAS)
Features of SAAS Companies offering SAAS
 Free or paid via subscription.
 Accessible from any
computer.
 Facilitates collaborative
working.
 Google
 Microsoft
 Apple
12/2/2016

13. Pros
 Cost Efficient .
 Almost Unlimited Storage .
 Backup and Recovery.
 Automatic Software Integration .
 Easy Access to Information.
 Quick Deployment .
 Facilitates accesses from
any computer.

14. Cons
 Technical Issues
 Security in the Cloud
 Prone to Attack .
 Risk of vendor lock in.
 Limitation of languages and tools.
 Generic apps are not always useful for business use.

15. Thank you