The “cloud” or cloud computing has become a term that we constantly hear, whether in the workplace, in everyday life, or even in casual conversations. However, its true meaning continues to generate confusion for many. It is often thought that “the cloud” is something intangible, almost ethereal, when in reality, it refers to a network of interconnected servers that store and process data remotely, accessible from anywhere in the world. Let’s break down what the cloud is exactly and how it works.
The cloud: beyond an ethereal concept
The term “cloud” refers to services provided over the internet. These services can include everything from data storage to information processing. When we talk about “uploading a file to the cloud,” what actually happens is that the file is stored on a server located in a data center of a service provider, such as Google, IBM, Salesforce, Stackscale, Microsoft, or Amazon, and can be accessed from any internet-connected device.
Some common examples of cloud services include:
– Email (like Gmail or Outlook)
– File storage (like Dropbox or Google Drive)
– Data processing (converting a file to another format, for example)
These service providers have built massive server infrastructures known as data centers, where they manage the information of millions of users. These servers are designed to be highly secure and are ready to ensure that the stored data is accessible quickly and efficiently.
Types of cloud: public, private, and hybrid
When we talk about the cloud, there are three main types that cater to different business needs:
1. Public cloud: In this model, services are provided over a shared infrastructure. Multiple clients use the same servers and resources securely and in isolation. Examples include services like Dropbox, Google Drive, or Microsoft OneDrive, where users store their data alongside that of millions of other users, but without access to each other.
2. Private cloud: In this case, the infrastructure is entirely dedicated to a single client, such as the one offered by Stackscale (Grupo Aire) in Madrid and Amsterdam. This provides greater control and customization, ideal for organizations handling sensitive data that require an extra level of security. Although more expensive, the private cloud ensures that resources are not shared with other users.
3. Hybrid cloud: It combines the best of both worlds. Some operations can be performed in a private cloud while others, less critical, are managed in a public cloud. This approach offers flexibility, allowing businesses to optimize their use of resources according to the needs of each task.
Benefits of using the cloud
The use of the cloud has transformed how companies and individuals store and process information. Some of its main benefits include:
– Remote access: The ability to access data and applications from anywhere with an internet connection.
– Cost reduction: Companies do not need to invest in their own infrastructure, as servers and storage systems are provided by cloud service providers.
– Scalability: Resources can be adjusted according to demand, allowing for the increase or decrease of storage or processing capacity as needed.
– Security and backup: Cloud providers typically have advanced security systems and backup procedures to protect data from potential threats or technical failures.
In summary, the cloud is nothing more than a complex infrastructure managed by large providers, designed to offer services ranging from storage to data processing efficiently and securely. The types of clouds (public, private, and hybrid) allow both individuals and businesses to find the best solution for their needs, optimizing costs and improving accessibility.
With the increasing digitalization, understanding what the cloud is and how it can benefit us is essential to make the most of the tools and services that are part of our daily and professional lives. The cloud is here to stay and will continue to evolve to meet the growing demands of an increasingly connected world.
You can also watch this video to learn about what cloud is without reading.