This document discusses cloud computing, including its definition, types of services, service models, types of clouds, service providers, examples of cloud storage, advantages, drawbacks, and conclusion. Cloud computing delivers hosted services over the Internet and involves users, applications, infrastructure, and platforms. The main types of cloud services are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Cloud computing offers advantages like reduced costs, infinite storage, and location independence but also security issues, dependency, and limited control. In conclusion, cloud computing remains strong despite drawbacks and has great potential for the future.

1. K
USUM
M S/ F
.Sc W
122227

2. CL
OUD COM UT
P ING
• Cloud computing is a general term for
anything that involves delivering hosted
services over the Internet.

3. USE
RS
END USER
APPLICATION
BUSINESS
PERSON
INFRA
STRUCTURE
DEVELOPER
PLATFORM

4. P
ROB E S
LM
•
•
•
•
Storage Space
M
aintenance of server
L
ocation dependency
H cost
igh

5. END USER
BUSINESS
PERSON
DEVELOP
ER
Services

6. T E OF SE
YP S
RVICE
S
IAAS
SAAS
P
AAS

7. SE
RVICE M
ODE S
L

8. T E OF CL
YP S
OUD
HYBRID
PRIVATE
PUBLIC

9. CL
OUD SE
RVICE P
ROVIDE
RS
 Amazon web service
• Elastic Compute Cloud(EC2)
• Simple storage service(S3)
• Simple queue service(SQS)
 Google
• AppEngine
M
icrosoft
• Window Azure

10. E
XAM L S OF CL
PE
OUD
ST
ORAGE
•
•
•
•
•
•
Gmail
Yahoo! Mail
Facebook
YouTube
MySpace
Google Docs
And many more…

11. ADVANT
AGE
S
INT RNE
E
T
Reduction of Cost
Your company doesn’t
pay for h/ and
w
maintenance
T service provider
he
pays for equipments
and maintenance

12. Conti…
• Easy access to data
• Infinite storage
• Separation of application code from physical
resources
• Pay as per use
• Multiuser access
• Location independence

13. DRAW ACK
B
S
• SE
CURIT ISSUE
Y
S
 Integrity
 Confidentiality
 Authenticity

14. Conti…
•
•
•
•
Dependency
Technical difficulties and downtime
Limited control and flexibility
Increased vulnerability

15. CONCL
USION
• Cloud computing is becoming more and more popular. Despite
its drawbacks and the fact that it is still in an infant age, cloud
computing remains strong and has great potential for the
future. We can only hope that the advantages will further grow
and the drawbacks will be mitigated, since cloud computing
seems to have made IT a little bit easier. Happy cloud
computing!

16. References
•
•
http://en.wikipedia.org/wiki/Cloud_computing
http://communication.howstuffworks.com/cloudcomputing2.htm
• http://en.wikipedia.org/wiki/Cloud_computing_user
• http://communication.howstuffworks.com/cloud_computing.ht
m/printable
• http://cloudcadet.com

17. s…
k
an
h
T

18. e
u
Q
?
??
..
s
ie
r