The document discusses cloud computing, including its history, types of cloud services (SaaS, PaaS, IaaS), examples of cloud platforms, types of cloud deployments (public, private, hybrid cloud), cloud operating systems, data centers, and disadvantages of cloud computing such as reliance on internet connectivity.

2. CLOUD COMPUTING
“Giving up the ultimate tragedy”
Presented by
Popoola Bannkole Adekunle
Aptech Computer Education
Semester II

3. T he first hard disk drive came from IBM.
It was called the IBM Model 350 Disk File and was a huge device.
It had 50 24-inch disks contained inside a cabinet that was as large as a
cupboard and anything but lightweight. This hulk of a storage unit could store 5
MB of data.

4. here is a 250 MB hard disk drive from 1979.

5. the practice of using a network of
remote servers hosted on the
Internet to store, manage, and
process data, rather than a local
server or a personal computer.

6.  Software as a Service (SaaS)-End Users
 Platform as a Service (PaaS)-Application
Developers
 Infrastructure as a Service (IaaS)-Network
Architects

7. SOFTWARE AS A SERVICE-END USERS
 is an application that can be accessed from anywhere on the
world as long as you can have an computer with an Internet
Connection.
 We can access this cloud hosted application without any
additional hardware or software.
 E.g. : G-mail, OneDrive, Yahoo mail, Hotmail etc..,

8. Application provided by Cloud Computing – OneDrive

10. PLATFORM AS A SERVICE (PAAS)-
APPLICATION DEVELOPERS
 Give us nice API (Application Programming Interface) and take
care of the implementation.
 is a platform for developers to write and create their own SaaS i.e.
applications.
 which means rapid development at low cost.
 E.g.: Salesforce.com, Windows Azure etc.

11. INFRASTRUCTURE AS A SERVICE
(IAAS)-NETWORK ARCHITECT
 also known as hardware as a service.
 is a computing power that you can rent for a limited period of
time.
 allows existing applications to be run on a cloud suppliers
hardware.
 Example: Google App, Azure.

12. Public Cloud
 can be shared by various organizations.
 Visible to the public, organization, community and any one who in need
 E.g. : Amazon, Google, Microsoft, Sales force
Private Cloud
 The computing infrastructure is dedicated to a particular organization and not
shared with other organizations.
 more expensive and more secure when compare to public cloud.
 E.g. : HP data center, IBM, Sun, Oracle, 3tera
Hybrid Cloud
 Organizations may host critical applications on private clouds.
 usage of both public and private together is called hybrid cloud.

13. CLOUD OPERATING SYSTEMS
 Eye OS
 Amoeba OS
 Glide OS
 Start force
 myGoya
 CorneliOS
 Lucid Desktop
 Cloudo, Ghost, Zimdesk, Start force etc.,

20. F a c e b o o k D a t e C e n t e r
G o o g l e S e r v e r

21. DISADVANTAGES OF CLOUD
COMPUTING
 Cloud computing is impossible if you cannot connect to the
Internet.
 Since you use the Internet to connect to both your applications and
documents, if you do not have an Internet connection you cannot
access anything, even your own documents.
 A dead Internet connection means no work and in areas where
Internet connections are few or inherently unreliable, this could be
a deal-breaker.
 When you are offline, cloud computing simply does not work.

23. Thanking You
Queries?..