Cloud computing

1. Dr B T Sampath Kumar
Professor
Department of Library and Information Science
Tumkur University, Tumakuru, INDIA
www.sampathkumar.info
Cloud Computing

2. Cloud computing
• Use of remote servers hosted on the Internet
to:
– Store
– Manage and
– Process data, rather than using a local server
or a personal computer.

3. What is cloud?
• The term “Cloud” came from a network design
that was used by network engineers.
• It represents the location of various network
devices and their inter-connection.

4. Why cloud computing?
• Increased computer and mobile users.
• Data storage has become a priority in all
fields.
• Individuals/small scale businesses spent huge
amount of money to maintain their data.
• To store the data in local server, requires a
strong IT support and a storage devices/hubs.
• Cloud computing decreases the hardware and
software demand from the user’s side.

5. Architecture
• Cloud computing comprises of two
components: front end and back end.
• Front end consists client part of cloud
computing system.
• It comprises of interfaces and applications
that are required to access the cloud
computing platform.

6. Cont..
• While back end refers to the cloud itself.
• It comprises of the resources that are required
for cloud computing services.
• It consists of:
– Virtual machines
– Servers
– Data storage
– Security mechanism etc.

7. Cloud models
• Deployment model
– Public
– Private
– Community
– Hybrid
• Service model
– Infrastructure as a Service (IaaS)
– Platform as a Service (PaaS)
– Software as a service (SaaS)

9. Public cloud
• The public cloud is defined as computing
services offered by third-party providers over
the public Internet.
• It is available to anyone who wants to use or
purchase them.
• They may be free or sold on-demand.

10. Private cloud
• Computing resources are deployed for one
particular organization.
• This method is more used for intra-business
interactions.
• The computing resources can be governed,
owned and operated by the same
organization.

11. Hybrid cloud
• A hybrid cloud is a computing environment
that combines a public cloud and a
private cloud by allowing data and
applications to be shared between them.

12. Community cloud
• It is a collaborative effort.
• The infrastructure is shared between several
organizations from a specific community with
common concerns:
– Security
– Compliance
– Jurisdiction

13. Service model
• The three major cloud computing offerings
are:
– Software as a Service (SaaS)
– Platform as a Service (PaaS)
– Infrastructure as a Service (IaaS)

14. Software as a Service (SaaS)
• Software Applications are hosted by a vendor
or service provider and made available to
customers over a network.
• Traditionally, software application needed to
be purchased and then installed it onto your
computer.
• Instead of purchasing the software, SaaS users
can subscribe to it, usually on monthly basis
via internet.

15. Platform as a Service (PaaS)
• It provides a platform and environment to
allow developers to build applications and
services.
• This service is hosted in the cloud and
accessed by the users via Internet.
• It constantly updates & new features are
added.
• Software developers, web developers and
business can benefit from PaaS.

16. IaaS (Infrastructure as a Service)
• It provides computing infrastructure like
– Virtual server space
– Network connections
– Bandwidth

17. Cloud service providers
• Cloud service providers (CSP) are companies
that offer:
– Network services
– Infrastructure, or
– Business applications in the cloud.

18. Amazon Web Services (AWS)
• Amazon Web Services is a cloud computing
platform which provides services such as:
– Database storage
– Content delivery

19. Microsoft Azure
• Microsoft Azure is a cloud computing service
which is used for building, testing, deploying
and managing the application.

20. Google Cloud Platform
• The Google cloud platform is basically used for
Google search and YouTube.
• There are various services offered by Google
Cloud such as:
– Data analysis
– Machine learning, and
– Data storage.

21. IBM Cloud Services
• IBM Cloud computing services are also
helping:
– home appliance manufacturer
– retailer and
– medical supply businesses.

22. Adobe Creative Cloud
• It consists of many applications and services
that provide access to a collection of software
which can be used for:
– Video editing
– Web development
– Photography, and
– Graphic designs.

23. Onedrive
• It is Microsoft’s free online file storage service.
• It allows sharing individual files via email or on
social networks.

24. DropBox
• It is a very popular service for file storage and
sharing purposes.
• Any file you save to Dropbox is automatically
and instantly saved to your computer, phone,
and the Dropbox website.
• You can edit files in your Dropbox from your
phone and share them freely with anyone
when required.

25. Google drive
• Google Drive is a file storage developed
by Google.
• It allows users to store files on their servers,
synchronize files across devices, and share
files.

26. Benefits of cloud computing
• Lower IT infrastructure
• Improved performance
• Instant software updates
• Improved compatibility between Operating
systems
• Backup and recovery
• Performance and Scalability
• Increased storage capacity
• Increase data safety