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 network, i.e., on
public networks or on private
networks, i.e., WAN, LAN or VPN.
Applications such as e-mail, web
conferencing, customer relationship
management (CRM), all run in cloud.
What is Cloud Computing?
Cloud Computing refers to manipulating,
configuring, and accessing the
applications online. It offers online data
storage, infrastructure and application.
Cloud Computing is both a combination
of software and hardware based
computing resources delivered as a
Types of clouds in cloud computing?
Cloud computing comes in four forms:
1) public clouds
2) private clouds
3)hybrid clouds and
Depending on the type of data you're working with
you'll want to compare public, private, and hybrid
clouds in terms of the different levels of security
and management required.
PUBLIC CLOUD : The Public Cloud allows
systems and services to be easily accessible to the
general public. Public cloud may be less secure
because of its openness, e.g., e-mail.
PRIVATE CLOUD : The Private Cloud allows
systems and services to be accessible within an
organization. It offers increased security because of
its private nature.
HYBRID CLOUD : The Hybrid Cloud is mixture of
public and private cloud. However, the critical
activities are performed using private cloud while the
non-critical activities are performed using public
The three types of
1)Infrastructure as a
2)Platform as a Service
3)Software as a Service
Infrastructure as a Service (IaaS):
A third party hosts elements of infrastructure, such as hardware, software,
servers, and storage, also providing backup, security, and maintenance.
IaaS Examples: Amazon Web Services (AWS), Cisco Metapod, Microsoft
Azure, Google Compute Engine (GCE).
Software as a Service (SaaS):
the largest cloud market and are still growing quickly. SaaS uses the web
to deliver applications that are managed by a third-party vendor and
whose interface is accessed on the clients’ side. Most SaaS applications
can be run directly from a web browser without any downloads or
installations required, although some require plugins.
SaaS Examples: Google Apps, Salesforce, Workday, Concur, Citrix
GoToMeeting, Cisco WebEx.
Platform as a Service
The branch of cloud computing that allows
users to develop, run, and manage
applications, without having to get caught up in
code, storage, infrastructure and so on.
There are several types of PaaS. Every PaaS
option is either public, private, or a hybrid mix
of the two. Public PaaS is hosted in the cloud
and its infrastructure is managed by the
provider. Private PaaS, on the other hand, is
housed in on-site servers or private networks,
and is maintained by the user. Hybrid PaaS
uses elements from both public and private,
and is capable of executing applications from
multiple cloud infrastructures
The World of Business Cloud Computing:
When it comes to providing services, the big players in the corporate
computing sphere include:
• Google Cloud
• Amazon Web Services
• Microsoft Azure
• IBM Bluemix