Gartner defines cloud computing as "a style of computing in which massively scalable IT-related capabilities are provided 'as a service' using Internet technologies to multiple external customers." Beyond the Gartner definition, clouds are marked by self-service interfaces that let customers acquire resources at any time and get rid of them the instant they are no longer needed. The cloud is not really a technology by itself. Rather, it is an approach to building IT services that harnesses the rapidly increasing horsepower of servers as well as virtualization technologies that combine many servers into large computing pools and divide single servers into multiple virtual machines that can be spun up and powered down at will.

Naturally, a public cloud is a service that anyone can tap into with a network connection and a credit card. "Public clouds are shared infrastructures with pay-as-you-go economics," explains Forrester analyst James Staten in an April report. "Public clouds are easily accessible, multitenant virtualized infrastructures that are managed via a self-service portal."

A private cloud attempts to mimic the delivery models of public cloud vendors but does so entirely within the firewall for the benefit of an enterprise's users. A private cloud would be highly virtualized, stringing together mass quantities of IT infrastructure into one or a few easily managed logical resource pools. Like public clouds, delivery of private cloud services would typically be done through a Web interface with self-service and chargeback attributes.

You might say software-as-a-service kicked off the whole push toward cloud computing by demonstrating that IT services could be easily made available over the Web. While SaaS vendors originally did not use the word cloud to describe their offerings, analysts now consider SaaS to be one of several subsets of the cloud computing market.

Public cloud services are breaking down into three broad categories: software-as-a-service, infrastructure-as-a-service, and platform-as-a-service. SaaS is well known and consists of software applications delivered over the Web. Infrastructure-as-a-service refers to remotely accessible server and storage capacity, while platform-as-a-service is a compute-and-software platform that lets developers build and deploy Web applications on a hosted infrastructure.

The main difference is in the server management, called the administration. For a dedicated server, only operating system installation is included in the price. You have to take care of any additional software, backup, updates, etc. If you want to get rid of this responsibility, a managed server is a better choice for you. The main advantage of managed servers, in addition to the administration, is also monitoring by our 24x7 surveillance system and proactive troubleshooting if necessary. The service also always includes managed backup of server data to our backup servers.

The server is managed by a professional administrator who solves all problems for you. We monitor servers 24 hours a day and proactively respond even to unexpected situations. The service also always includes managed backup of server data to our backup servers.

We deal with DoS (Denial of Service) individually by selective filtration on our side. Managed servers are updated and monitored at regular intervals.

Backup is automatically included in all managed services. For any other services, but even if you do not yet have any services with us, we offer you different types of backup

We monitor managed servers automatically, the customer is informed by our support in the event of service failure. And it does not end with monitoring; we respond to problems 24x7 and address them proactively. For other servers it is an additional service which we set up at the customer's request.

Regarding the purchase, the warranty is according to the guarantee bought from the manufacturer. In case of lease, it is always for the duration of the contract.

We guarantee to intervene within one hour. It rather depends on the complexity of the problem, but we focus on our ability to perform technical service at any time and in the shortest time possible.