The document provides an overview of cloud computing, defining it as an IT service delivered over the internet with various deployment and service models like SaaS, PaaS, and IaaS. It outlines the key characteristics, advantages, and disadvantages of cloud computing, highlighting aspects such as increased speed, scalability, and reduced costs, along with potential issues like dependency on internet connectivity and data security concerns. The presentation concludes by discussing commercial cloud providers in the market.

1. CLOUD COMPUTING
Decisions! Delivered !!
SARAVANAN . M
SALES MANAGER
20TH NOV 2013
Index :
1. Cloud Computing Intro
2. Characteristics
3. Service Model / Deployment Model
4. Service Model – SaaS / PaaS / IaaS
5. Deployment Model – Private / Public
6. Cloud Providers
7. Advantages of Cloud Computing
8. Disadvantages of Cloud Computing
9. Commercial Clouds
10. Conclusion & Thanks.

2. CLOUD COMPUTING :
 Cloud computing is simply an IT service sold and delivered over the Internet
 These are not new technologies but a new name applied to a collection of
older technologies that are packed, soled and delivered in a new way.
 Cloud computing is a computing model, not a new technology. In this model,
the “customer” plug into the “cloud” to access IT resources which are priced
and provided “on-demand”.

3. CHARACTERISTICS :
 There are five essential characteristics of cloud computing :
 On-demand Self service
 Resource pooling
 Rapid elasticity
 Measured service
 Broad network access.

4. SERVICE MODEL & DEPLOYMENT MODEL:
 The 3 service models of Cloud
 Similarly there 3 deployment models
Computing are ,
also ,
 SAAS (Software As A Service)

Public cloud
 PAAS (Platform As A Service)

Private cloud
 IAAS (Infrastructure As A Service).

Hybrid cloud.

5. SERVICE MODELS: (SAAS / PAAS / IAAS)
 SAAS :Applications delivered as a service to end users over the internet .
 (eg: Gmail , Google apps, AOL messaging).
 PAAS :Application development & deployment platform delivered as a service
.
 (with: OS, Server hardware, load balancing or computing capacity. Providers are – Microsoft Azure, oracle, Google
maps, sales force`s force.com).
 IAAS : Server-storage, network hardware& associated software delivered as a
service.

(raw virtual servers, on demand that customers configure and manage. The Vendors are :IBM, Amazon.com (elastic
compute cloud[EC2} and simple storage)

6. DEPLOYMENT MODELS: (PUBLIC/ PRIVATE)
Public
Cloud
Public Cloud
:
• Lowers
upfront costs
• Economies
of Scale
• Simpler to
manage
Private Cloud
SaaS
SaaS
PaaS
Intrane
t
PaaS
IaaS
IaaS
Both Cloud Offers
• High Efficiency
:
• High
Availability
• Elastic
Capacity
Private Cloud :
• Lowers Total
costs
• Greater control
over security &
quality of
Service
• Easy Integration
• CapEx and
OpEx

7. CLOUD PROVIDERS:

8. ADVANTAGES OF CLOUD COMPUTING:
 Increased Speed
# 24 hrs provisioning,
# Online self service,
# Credit card Acquisition.
 Increased Scalability
# Increase capacity ~ 24 hrs,
# “Turn on & Turn off “ monthly,
# Capacity on demand.
 Reduce Cost
# pay only for what you need,
# Month – month Service,
# No Annual Maintenance Fee.

9. DISADVANTAGES OF CLOUD COMPUTING:
 Requires a constant Internet connection
 Does not work with low speed connections.
 Cloud Computing is impossible if you cannot connect to the internet.
 When you are offline, Cloud Computing doest not work.
 Stored data can be lost / might not be secure. There is No physical or local
backup.
 Limited features.

10. COMMERCIAL CLOUDS
Commercial cloud
providers in the market !

11. THANK YOU !
DECISIONS !! DELIVERED !!!