cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.

1. CLOUD
COMPUTING
BY -:

2. INTRODUCTION
Cloud Computing is the delivery of computing services such as servers,
storage, databases, networking, software, analytics, intelligence, and
more, over the Cloud (Internet).
Cloud Computing provides an alternative to the on-premises datacentre.
With an on-premises datacentre, we have to manage everything, such as
purchasing and installing hardware, virtualization, installing the operating
system, and any other required applications, setting up the network,
configuring the firewall, and setting up storage for data. After doing all the
set-up, we become responsible for maintaining it through its entire
lifecycle.
But if we choose Cloud Computing, a cloud vendor is responsible for the
hardware purchase and maintenance. They also provide a wide variety of
software and platform as a service. We can take any required services on
rent. The cloud computing services will be charged based on usage.

3. WHAT IS CLOUD
The term Cloud refers to
a Network or Internet. In
other words, we can say
that Cloud is something,
which is present at
remote location. Cloud
can provide services over
public and private
networks, i.e., WAN, LAN
or VPN.
Applications such as e-
mail, web conferencing,
customer relationship
management (CRM)
execute on cloud.

4. ARCHITECTURE OF CLOUD COMPUTING
The cloud computing architecture consists of two
fundamental components, the front end, and the back
end. The front-end is the client of such architecture and
communicates with the backend through a network or
internet connection. In cloud computing architecture, the
client-side or front-end becomes visible to other entities
whereas the backend remains hidden from contact with
anyone on the outside, yet it is able to communicate
directly with its client through a predetermined protocol.
The backend of cloud architecture helps protect vital
information from the demand of client-facing technology.
It receives queries about your data and responds
appropriately. The backend is an important aspect of
your overall computer system that makes up a big part of
the entire cloud concept.

5. COMPONENTS OF CLOUD COMPUTING ARCHITECTURE
1. Client Infrastructure:
Client Infrastructure is a front-end component that provides a GUI. It helps users to interact with the Cloud.
2. Application:
The application can be any software or platform which a client wants to access.
3. Service:
The service component manages which type of service you can access according to the client’s requirements.
Three Cloud computing services are:
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
4. Runtime Cloud:
Runtime cloud offers the execution and runtime environment to the virtual machines.
5. Storage:
Storage is another important Cloud computing architecture component. It provides a large amount of storage capacity in the Cloud
to store and manage data.

6. TYPES OF CLOUD
Type of access to the cloud, i.e.,
how the cloud is located? Cloud
can have any of the four types of
access: Public, Private, Hybrid, and
Community.

7. PUBLIC CLOUD
Public cloud is open to all to store and access information via the Internet
using the pay-per-usage method.
In public cloud, computing resources are managed and operated by the
Cloud Service Provider (CSP).
Example: Amazon elastic compute cloud (EC2), IBM SmartCloud Enterprise,
Microsoft, Google App Engine, Windows Azure Services Platform.

8. PRIVATE CLOUD
Private cloud is also known as an internal cloud or corporate cloud. It is
used by organizations to build and manage their own data centers
internally or by the third party. It can be deployed using Opensource tools
such as Openstack and Eucalyptus.
Based on the location and management, National Institute of Standards
and Technology (NIST) divide private cloud into the following two parts-
On-premise private cloud
Outsourced private cloud

9. HYBRID CLOUD
Hybrid Cloud is a combination of the public cloud and the private
cloud. we can say:
Hybrid Cloud = Public Cloud + Private Cloud
Hybrid cloud is partially secure because the services which are
running on the public cloud can be accessed by anyone, while the
services which are running on a private cloud can be accessed only
by the organization's users.
Example: Google Application Suite (Gmail, Google Apps, and
Google Drive), Office 365 (MS Office on the Web and One Drive),
Amazon Web Services.

10. COMMUNITY CLOUD
Community cloud allows systems and services to be accessible by a group
of several organizations to share the information between the organization
and a specific community. It is owned, managed, and operated by one or
more organizations in the community, a third party, or a combination of
them.
Example: Health Care community cloud

11. CONCLUSION
 So, while cloud computing is really really great and you’re probably already using it, either for business
of for personal means, here’s what we’ve learned from taking a look at the pros and cons:
 Cloud computing is a really cheap way for companies to have all the resources they need in once place.
 It’s a much better way to spread your resources, and it becomes easier to access things from longer
distances.

12. THANK YOU