If you're not sure what cloud computing is, you're probably among 95% of people who are already using cloud services, such as online banking and social networks, but you do not realize it.

The "cloud" is a set of different types of hardware and software that work together to deliver many aspects of computing to the end user as an online service.

Cloud computing is the use of hardware and software to provide a service through a network (usually the Internet). With cloud computing, users can access files and use applications from any device that can access the Internet.

An example of a Cloud Computing provider is Google Gmail. Gmail users can access files and applications hosted by Google over the Internet from any device.

How is computing different from the computer cloud of the hard disk of my PC?
Unlike traditional computing, where data is stored on your PC's local hard drive, data in the cloud is stored on many physical and / or virtual servers hosted by an external service provider. An example of a cloud file storage provider is Dropbox. Dropbox files can be accessed from any device through the Internet.

What are public and private clouds?

A public cloud is based on the standard cloud computing framework that consists of files, applications, storage and services available to the public through the Internet. Gmail is an example of a public cloud.

A private cloud consists of files, applications, storage and services that are implemented and protected within a corporate firewall, under the control of a corporate IT department. An example of a private cloud would be a company that uses Microsoft Exchange, since only an authorized user can access Microsoft Exchange through a secure VPN connection.

What are some services and common companies in the cloud?

Some common services that are hosted in the cloud are the hosted desktop, provided by companies such as AT & T; Email hosted as Gmail, provided by companies such as Google; cloud storage, provided by companies such as Dropbox; and streaming music, provided by companies such as Spotify. These services, applications and files are stored in the cloud and users can access them through any device.

There is a wide range of companies and vertical sectors that use cloud computing such as Amazon and Google. Both public and private companies of small, medium and large size use cloud computing to reduce the costs of technology acquisition.

Do I need cloud computing?

The cloud computing market continues to grow year after year because companies are becoming more aware of the savings benefits of cloud adoption.

With hardware services, companies can use the cloud service provider's equipment (storage, hardware, servers, and network components) instead of spending large amounts of capital on equipment.

With software services, business applications are hosted by the cloud service provider and are available through a network, which saves expensive maintenance and implementation costs.

Are my files secure in the cloud?

While no storage solution is 100% secure, cloud storage providers can offer a safer and more accessible place for companies to store data than traditional computer methods.

Depending on the service contract, duplicate copies of company data can be stored on servers located in different geographies and protected by backup power supplies in the event of a disaster.

Nowadays, many companies are moving to a hybrid Cloud Computing model. With this model, companies have the flexibility to store confidential data securely in a private cloud while storing public data in a public cloud. Both infrastructures remain as separate, unique entities.

What is NOT the cloud?

The cloud is not a spongy white mass formed by small drops of water that float in cyberspace. The cloud is not affected by climate changes such as barometric pressure.

The cloud is not a place in a single location. In fact, the cloud can be anywhere. The cloud can be in the data center of your company or hosted in a third-party data center.

The growth of the cloud is not being driven by the "big companies". The growth of the cloud is being driven by consumers who buy devices ready for the cloud that can