Difference Between Public And Private Cloud?

Hi,

Public cloud can be available to people across the world. In this Public Cloud the user has no control over the resources. Where Private Cloud Can be accessed only within the limited premises. In Private cloud Cloud Services Providers Cloud infrastructure to particular Organization or Business specially. This Cloud infrastructure is not provided to others.
Adding some points to the same ,
Private Clouds

Private clouds are those that are built exclusively for an individual enterprise. They allow the firm to host applications in the cloud, while addressing concerns regarding data security and control, which is often lacking in a public cloud environment.

Public Clouds

Public clouds are owned and operated by third-party service providers. Customers benefit from economies of scale because infrastructure costs are spread across all users, thus allowing each individual client to operate on a low-cost, “pay-as-you-go” model. Another advantage of public cloud infrastructures is that they are typically larger in scale than an in-house enterprise cloud, which provides clients with seamless, on-demand scalability.

It is also important to note that all customers on public clouds share the same infrastructure pool with limited configurations, security protections and availability variances, as these factors are wholly managed and supported by the service provider.

Thanks

Hi

Adding some points:

Private Cloud
The main drawback people see with a private cloud is that all management, maintenance and updating of data centers is the responsibility of the company. Over time, it’s expected that your servers will need to be replaced, which can get very expensive. On the other hand, private clouds offer an increased level of security and they share very few, if any, resources with other organizations.

Public Cloud
This type of cloud environment is appealing to many companies because it reduces lead times in testing and deploying new products. However, the drawback is that many companies feel security could be lacking with a public cloud. Even though you don’t control the security of a public cloud, all of your data remains separate from others and security breaches of public clouds are rare.
Public clouds are the most common way of deploying cloud computing. The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider and delivered over the Internet. Microsoft Azure is an example of a public cloud. With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. In a public cloud, you share the same hardware, storage and network devices with other organisations or cloud “tenants.” You access services and manage your account using a web browser. Public cloud deployments are frequently used to provide web-based email, online office applications, storage and testing and development environments.

Advantages of public clouds:
Lower costs—no need to purchase hardware or software and you pay only for the service you use.
No maintenance—your service provider provides the maintenance.
Near-unlimited scalability—on-demand resources are available to meet your business needs.
High reliability—a vast network of servers ensures against failure.

A private cloud consists of computing resources used exclusively by one business or organisation. The private cloud can be physically located at your organisation’s on-site datacenter or it can be hosted by a third-party service provider. But in a private cloud, the services and infrastructure are always maintained on a private network and the hardware and software are dedicated solely to your organisation. In this way, a private cloud can make it easier for an organisation to customise its resources to meet specific IT requirements. Private clouds are often used by government agencies, financial institutions, any other mid- to large-size organisations with business-critical operations seeking enhanced control over their environment.

Advantages of a private clouds:
More flexibility—your organisation can customise its cloud environment to meet specific business needs.
Improved security—resources are not shared with others, so higher levels of control and security are possible.
High scalability—private clouds still afford the scalability and efficiency of a public cloud.

Multi-tenancy: the data of multiple organizations in stored in a shared environment. The data stored in the public cloud is usually multi-tenant, which means the data from multiple organizations is stored in a shared environment. The data stored inprivate cloud is kept private by the organization.