Cloud computing is a model where data and services reside on the internet rather than local servers or personal devices. It provides scalable computing resources and services through a shared network infrastructure. There are three main service models: Infrastructure as a Service (IaaS) provides basic computing and storage resources; Platform as a Service (PaaS) provides development environments; and Software as a Service (SaaS) provides applications delivered over the internet. Cloud computing offers benefits like reduced costs, increased collaboration, and scalability but also security concerns due to data residing externally.

1. CLOUD COMPUTING
By
B.DUSHYANTH REDDY
O8TE1A0508

2. • “Cloud” is actually a metaphor for the Internet.
• Cloud computing is a paradigm in which information is
permanently stored in servers on the Internet.

3. The cloud is a large group of
interconnected computers.
It is a document-centric concept not PC
centric.

4. History of Cloud Computing
 Concept dating back to the 1960’s by John McCarthy, a
computer scientist, brought up the idea that "computation may
someday be organized as a public utility”
 Idea that revolutionized Cloud Computing: Moving from
clustering computing to grid computing
–Clustering
–Grid
“In some ways, the cloud is a natural next step from the grid-
utility model,” said Frank Gens, an analyst at the research firm
IDC

5. SERVICE MODELS
Cloud computing provides three service according to fundamental models.
–Infrastructure as a Service
–Platform as a Service
–Software as a Service

6. IaaS- Infrastructure as a Service
Defined as delivery of computer infrastructure as a service
Fully outsourced service so businesses do not have to purchase servers,
software or equipment
Infrastructure providers can dynamically allocate
resources for service providers
Service providers offer this service to end users
Allows cost savings for the service providers, since they do not need to
operate their own datacenter

7. PaaS- Platform as a Service
Provides all the facilities necessary to support the
complete process of building and delivering web applications
and services, all available over the internet
Infrastructure providers can transparently alter the
platforms for their customers’ unique needs

8. SaaS- Software as a Service
Defined as service-on-demand, where a provider will
license software tailored
Infrastructure providers can allow customers’ to run
applications off their infrastructure, but transparent to the
end user
Customers can utilize greater computing power while saving on the
following
–Cost
–Space
–Power Consumption
–Facility

9. COMPONENTS

10. TYPES OF CLOUD

11. PUBLIC CLOUD
Applications, storage, and other resources are made available to the general public by
a service provider. Public cloud services may be free or offered on a pay-per-usage
model.
PRIVATE CLOUD
Private cloud is infrastructure operated solely for a single organization, whether
managed internally or by a third-party and hosted internally or externally
HYBRID CLOUD
Hybrid cloud is a composition of two or more clouds (private, public etc.) that remain
unique entities but are bound together, offering the benefits of multiple deployment
models.

12. ROLES
Provider
A cloud computing provider or cloud computing
service provider owns and operates live cloud
computing systems to deliver service to third
parties.
User
A user is a consumer of cloud computing
Vendor
A vendor sells products and services that facilitate the delivery, adoption and
use of cloud computing.

13. Conclusion
Cloud Computing Brings Possibilities……..
Increases business responsiveness
Accelerates creation of new services via rapid prototyping capabilities
Reduces energy consumption
Handles new and emerging workloads
Scales to extreme workloads quickly and easily
Simplifies IT management
Platform for collaboration and innovation
Cultivates skills for next generation workforce

14. FUTURE ENHANCEMENTS
Security is a major concern for cloud computing, as it is for any new technology
organizations need to take the time to properly identify the data and workloads
that require a higher degree of resiliency, isolation and control.
The external nature of public clouds brings additional concerns about loss of
control and sharing data outside the firewall.