Cloud Computing basics, fundamentals Goals

Cloud Computing is one of the most complete technological solutions offered as a service, represented in an Internet-based computing alternative where the exchange of resources is established. Computers that have been configured in cloud computing are able to develop the potential of various applications that can be managed by a group of users at the same time.

The versatility of the cloud environment makes it one of the main advantages to be referred to in relation to current computing. Little by little Cloud services have been spreading across all kinds of sectors, reaching both companies and individual users. Because of this, it is always important that we pay a little attention to cloud computing basics in order to be informed about what we need to know in order to benefit from this trendy technological resource.

Getting to know the cloud

Important elements in the cloud

Cloud computing is composed of two important elements: a front-end and a back-end, which are connected via the Internet in most cases:

• The front-end is the medium that allows the user to interact with the system. The front-end is made up of a company's equipment or its computer network, as well as the applications that are typically used to access the cloud. 
• The back-end is the cloud itself. The back-end provides the servers, computers, and storage as offered by cloud providers.

cloud types

We also have to know the types of cloud, which can be public, private or hybrid:

• public clouds These are freely available to the public, provided by an industrial cloud computing provider.
• private clouds exist within a company and are administered directly by trained personnel for this purpose within the same organization. The company creates and manages its cloud computing services.
• hybrid clouds Hybrid cloud solutions are those that use the best of both worlds, public and private clouds. The company and the public cloud provider share responsibilities in the administration of the system. When using a hybrid cloud, organizations can determine how they will meet their needs based on their objectives and requirements.

We delve deeper into the cloud environment

Key roles

Several key roles for the correct functioning of the cloud environment, such as the developer, administrator, and cloud architect.

• El Developer It is a key piece in the cloud, due to the growing use of mobile devices, the unstoppable rise of social networks and other aspects of the commercial evolution of IT processes and systems.
• The administrators They are the supervisors and those who control the functions of an IT system. They are responsible for controlling user access to the network.
• Finally, the function of the architecture is the effective modeling of the functionality of the given system in the real world. The architect's basic responsibility is to develop the cloud computing model for its proper functioning.

The layers of the cloud

And once the roles are known We need to talk about your layers: 

• The infrastructure layer is the main layer and is composed of the physical assets that are the network devices, storage disks and servers. Also known as Infrastructure as a Service or by its acronym in English (IaaS).
• The platform is the middle layer and provides the application infrastructure. Also known as Platform as a Service (PaaS) provides access to operating systems and related services. It provides a way to deploy applications in the cloud using programming languages ​​and supporting tools from the vendor.
• In the case of the application, it is the top layer and is interpreted as the cloud. Applications run at this point and are provided according to user demand. Software as a Service (SaaS, Software as a Service) has providers like Google Pack. Google Pack includes applications accessible via the Internet, including Calendar, Gmail, Google Talk, Docs, and many more.

Cloud computing is attractive because among its advantages is the reduction of both capital and operating costs. Company staff do not waste time performing software and hardware maintenance tasks because the cloud provider takes care of that. In addition, its flexibility allows it to be expand or decrease its capacity according to the user's needs at any time.