Public Cloud

Cloud Computing and its Classifications


Before having introduction of cloud computing let's have a look on past of IT technologies. In the 80's it was Home Computing, in the 90's it was Internet Computing, in the beginning of the 21st century, we have wireless computing. And now what’s next? Of course “The Cloud Computing”! It is the result of innovation and advancement of all these existing technologies. The cloud computing enables individuals or businessmen to cut costs as there is concept of “virtualization” of server and client behind the technology. So, there is no involvement of any infrastructure cost. All the programs and applications are handled virtually. One can access cloud virtually through an internet connection. The server contains open source and or registered software which can be accessed online and used by the user from any computer with internet connection. So in short we can say there is no need of complex hard wired network.

Clouds are broadly classified as Public, Private and Hybrid clouds. Let's discuss each cloud one by one.

Public Cloud – A Free or Pay –Per –usage model

A cloud is called “Public cloud” if all the services are rendered over a network openly for public use. It is based on standard cloud computing model in which service provider makes resources (applications and storage) available to the public over the internet. Amazon AWS, Microsoft and Google are some of the public cloud providers who own and operate the infrastructure and offer access over the internet .However, the services may be free or on pay-per-usage. Here the users have no control over where the infrastructure is located. All the customers share same infrastructure pool with limited and schemes, security safeguards and availability variances on public clouds.

As far as cost is concerned, it is economical to use public cloud because here infrastructure costs spread among all the users.

Private Cloud – A secure network

Private cloud network is more secure as the cloud infrastructure is dedicated to a particular organization. Here organization can host applications either internally or externally. Data security which is the main concern of any organization is in the single hands. That’s why it is more secure although self run data centers are required which are generally considered an additional expenditure.

Hybrid Cloud – Combination of both Private and Public Cloud

Hybrid cloud computing is based on the composition of two or more clouds (private, public) which remain unique in their entities and are bound together for offering benefits of multiple deployed models. Hybrid cloud is preferably beneficial to use when your company wants to offer services to different vertical markets. In this situation public cloud computing is used to interact with the customers and in the same time their data can be secured by using private cloud.

The Cloud computing has changed the way how people interact, and do businesses in the modern world. This technology is the new wave of innovation for individuals, businesses as well as governments.

Which Type Of Cloud Is Good For Your Organization: Public, Private, or Hybrid Cloud?


Cloud computing is gaining more and more importance in this internet world. Thus it is essential to have good knowledge of cloud computing and what kind of cloud is beneficial for your business infrastructure. In this article, you will find out the information about cloud forms and which will be the best for your company. Cloud computing is categorized in three forms: 

Public Clouds: It is the common cloud computing model where services and infrastructure are provided off-site over the Internet.

Private Clouds: Services and infrastructure are maintained on a private network. These clouds provide high level of security but still require to purchase and maintain all the software and infrastructure which lower the cost savings.

Hybrid Clouds: Such type of clouds combines a variety of public and private options with multiple providers.  Organization provides and manages some resources in house and has others provided externally.

Every form has it own features, limitations and benefits. The right selection of cloud for you is depending upon the type of data you are working with. Here we are going to discuss information about these three types of clouds which will assist to know whether to deploy a public cloud, a private cloud or a hybrid cloud. Get a comparison of these clouds on the basis of security levels, management required etc.

=> Public cloud is well suited for those organizations which don’t require the level of infrastructure and security provided by the private clouds. Such type of cloud is the right choice when:

* Some of the workload of applications is used by lots of people, e.g. email.

* You require to test and develop application code

* You have SaaS applications for implementing security strategy

* You are performing collaboration projects

=> Private cloud is good for those organizations which require to store and process private data.

It is the obvious choice when:

*Major concern is to provide greater level of control and security

*Your organization is a part of industry that must conform to strict security and data privacy issues.

=> Hybrid Cloud combines both public and private cloud. It is considered the best choice for those companies which have special circumstances. Have a look on these situations where a hybrid environment is best:

* When organization needs to use a SaaS application along with good security level. In such type of cloud, vendor will develop a private cloud for your company inside the firewall. For security, virtual private network is provided.

* Hybrid cloud can be used by those companies which provide services that are tailored for various vertical markets. In this case, public cloud is used to interact with clients and private cloud is used to keep their data secure.