Cloud ( cloud computing ) is a way of delivering and licensing IT resources - including servers, databases, networks, services, and applications - via the Internet. In the cloud model, programs, applications and data are stored on third-party servers that provide cloud services and not on the client's local drives and computers. Thanks to this, expenses related to the purchase and maintenance of owning infrastructure and other fixed costs are eliminated, which leads to optimization and reduction of IT expenditure.

Types of clouds

Public cloud

A service offered by service providers using the public internet network allows access for anyone who wants to purchase and use public cloud services. This solution is the most popular way of using cloud computing. It will enable companies to implement and significantly reduce costs quickly. Savings are possible because the entire IT infrastructure: servers, software, licenses, etc., are operated and provided by the cloud provider and the fees apply only to used and used resources.

Public cloud (or external) infrastructure is freely available through Internet access to software applications and web services at the request of all users or a large industrial group of users.

The public cloud provides a flexible and cost-effective way to use IT solutions. The term "public" does not mean that the individual user's information is publicly available but defines the possibility of using cloud technology resources by each registered user. The public cloud includes applications in customer service management (CRM), communications, office, etc.

Private cloud

Unlike the public one, the private cloud model offers computing resources used only by one company or organization. The entire infrastructure for sharing is via the Internet or a private network. A private cloud solution, like a public cloud, enables quick implementation and high scalability of resources and gives the organization even greater control over the entire environment. In this variant, the company's internal IT department is responsible for managing the private cloud's IT infrastructure. Therefore, when deciding on this option, one should consider the costs generated with traditional data centers related to IT staff's maintenance, management, and maintenance of resources.  

Whether you're building your data center or hosting in an external server room, a private cloud will provide the scalability and flexibility necessary to change the way you deliver services to your business users.

Hybrid Cloud

A hybrid cloud is the combination of private cloud computing with a public cloud. At its best, hybrid cloud engages, creating equivalent environments in which apps and software can shift quickly between private and public clouds. In other cases, files can remain in the private data center and integrate with public cloud applications - or virtualized data center workloads can be virtual in the cloud during peak searches. The types of integration between the private and public cloud vary widely, but they must be extensive to receive a hybrid cloud label.

The hybrid cloud model exists due to the need for organizations of different types of cloud models (private and public) simultaneously. The hybrid cloud model allows the hosting of critical applications in the private cloud, while applications with lower security and access requirements are used in the public part.

We can say more about Hybrid Cloud because it combines the best of both worlds and has many advantages. For example, in the public cloud, you can store information that requires a lower security level, such as applications, customer management, etc. Simultaneously, the private cloud (or own server) is an ideal option for storing critical information about your business - financial reports, email communication, and more. You can also take advantage of the "cloud bursting" option - it allows you to transfer an application from a private cloud to a public one in case of a sudden load (most often during a current promotion or similar event).