Cloud computing is playing an increasingly important role in the modern digital landscape. It allows users to benefit from a wide range of computing resource delivery via the internet (the cloud), without the need to maintain physical infrastructure.
Whether for individuals or businesses, these resources are accessible remotely and offer many advantages. Cloud computing is also omnipresent in our daily lives, whether we know it or not. This is why it is essential to understand exactly what it is.
What is Cloud Computing?
Cloud computing is a solution that allows real-time access to computing resources on the Internet, such as data storage, servers, software, analysis tools, etc. It offers the possibility of using all these resources remotely, without having to own hardware equipment.
This is a complete outsourcing of the entire IT infrastructure to a third party. In simple terms, imagine that there is a giant computer on the Internet. Instead of storing large files or running very demanding software on your own PC, it is possible to put them on this “big computer”.
This provides greater flexibility and simplified management of IT resources and services.
Cloud computing: how does it work?
Cloud computing is based on a client-server principle, where users can access and manage computing resources via the Internet. The providers of these services own huge data centers, in the form of large-area premises where huge and sophisticated equipment is installed.
When users send a request, such as a database request, it is redirected to servers, either virtual or physical. These servers then perform essential processes and return responses within a period of time.
This way, users can download or manage any computing resource on their computers, without the need to own bulky and expensive infrastructures. In some cases, large companies may have their own premises dedicated to cloud computing, depending on the specifics of their needs.
What are the 3 types of Cloud Computing?
Cloud computing services are not the same for all uses. In fact, there are three main types of cloud, depending on the needs of each user:
1. Public Cloud
Public Cloud is a model where computing resources offered by a third-party provider are shared among multiple users. Computing infrastructures are distributed among individuals or companies, each of whom benefits from a personalized service based on their needs.
2. Private Cloud
The private cloud, as its name suggests, is owned by a single user. In this case, access to computing resources is completely exclusive to the beneficiary, often companies. The infrastructure can be locally present in the organization’s physical data center or managed by a third-party provider.
3. Hybrid Cloud
Hybrid cloud is a model that combines the characteristics of both private and public clouds. Users with varying computing resource needs can choose to run some applications on shared infrastructure, and others on infrastructure that is exclusively accessible to them.
What are the 4 models of Cloud Computing?
Cloud Computing is based on four models that vary according to the expectations and needs of users. At this stage, we distinguish the following models:
1. Infrastructure as a Service (IaaS)
IaaS is a cloud computing model where users access basic computing resources, paying rental packages. This includes servers, storage, networks, software, etc. They no longer have to manage the physical infrastructure themselves and can therefore install their own operating systems and applications on the rented cloud.
2. Platform as a Service (PaaS)
The second model of cloud computing is PaaS, which provides developers with an entire platform on which they can create, test and run applications. It allows them to work on their projects without the need for underlying technological resources.
This way, users can focus solely on application development, without worrying about the execution environment and infrastructure. These are completely provided by the PaaS cloud model provider.
3. Software as a Service (SaaS)
SaaS is a type of software and applications that users can access via the internet. These software are hosted on offshore servers provided by cloud companies and can be used on web browsers.
SaaS does not require any application installation on a computer. It often takes the form of specific programs dedicated to specific sectors. CRM, ERP or office automation tools, such as Microsoft 365 or Google Workspace, are common examples of SaaS.
4. Function as a Service (FaaS)
The fourth and final model of cloud computing is FaaS, which is based on the principle of performing a specific function. In this form, users do not have to manage the infrastructure themselves, but only provide functions that will be performed by the cloud provider. This model is serverless, and is suitable for less complex applications.
Cloud Computing Use Cases
Cloud computing plays a very important role in the use of computing resources of all kinds. Its usefulness lies mainly in:
- Data storage : Cloud computing offers solutions to store and manage large amounts of data on remote servers, only via the Internet. This allows users to optimize the use of hardware equipment such as large hard drives.
- Running software and applications : Cloud services also allow programs to be run directly over the Internet, without installation or updates required.
- Website and application hosting : Cloud computing offers the possibility of hosting websites or applications, with capacities adapted to the needs of users.
- Data analysis and processing : Big data processing can be done via the cloud, without the need for specific hardware. This solution allows users to analyze their big data by only accessing tools on the internet.
What are the advantages of Cloud Computing?
The benefits of cloud computing are numerous and attractive to all users, whether they are companies or individuals.
1. Cost reduction
Users do not need to invest a lot of money in acquiring or managing physical IT infrastructure. They can only pay for cloud services that they use, on demand, thus minimizing costs significantly.
2. Flexibility
Cloud services also allow users to adjust their computing resource capacities to the needs of momentary usage. Simply increase the desired capacities at any time, and without having to purchase additional equipment.
3. Remote accessibility
Cloud computing allows users to quickly access their databases via the internet, wherever they are. This is more convenient in an increasingly connected world where remote work is normalized.
4. Security and confidentiality
Cloud service providers take security very seriously. They invest heavily in the protection and confidentiality of their customers’ data, and always offer solutions to recover it no matter what.
Limitations and Disadvantages of Cloud Computing
Although cloud computing has several advantages, it does have some limitations in its use.
Internet connection dependency
Cloud computing requires the availability of a stable and fast internet connection, without which users cannot access the various resources provided. Therefore, it could be a problem in critical situations where users do not have access to the internet.
Subscription fees
Cloud computing can reduce physical infrastructure costs, but it also comes with recurring costs. Depending on the type and model of the cloud leased, costs vary and users should be aware of them.
Impact of Cloud Computing on the performance of PCs and Mini PCs
The impact of cloud computing on PC and mobile performancemini pc is not direct, but depends on how these machines are used. For personal or professional use, to run heavy applications and software or for gaming, cloud services allow you to exceed the capabilities of your computer.
1. Professional for work :
Cloud computing provides computing resources tailored to the needs of individuals or businesses using their PCs ormini PC for professional purposes. It allows them to reduce the load exerted by running different applications and benefit from higher performance than that of their local computers.
2. For gaming :
Thanks to cloud computing services,gamerscan run and stream the most demanding video games on their local PCs, with very high settings. Although these are beyond the capabilities of their computers, cloud servers with powerful processors (CPUs) and graphics cards (GPUs) provide the necessary infrastructure for users.
3. For video editing :
Software and applications of thevideo editingrequire high processing power, high storage capacity, new operating systems and large RAM capacity.
All of these resources are delivered in the cloud, eliminating the need to own very high-configuration PCs or mini PCs.
4. Normal use :
The normal use of PCs and mini PCs is also covered by cloud technology. Whether it is office automation, personal data storage, music streaming, etc., users can use cloud services to keep their computers less stressed, and therefore more efficient.
What are the examples of Cloud Computing?
Cloud computing services are numerous, and provided by giant companies specializing in this field of modern technology. Here are some of the most famous providers of offshore computing resources:
- Amazon Web Services (AWS) : Offers a variety of cloud services including compute (EC2), storage (S3), databases (RDS), and more.
- Microsoft Azure : Offers public cloud and hybrid cloud solutions, including virtual machines and development tools, such as Azure DevOps.
- IBM Cloud : stands out for its hybrid cloud service offering, blockchain solutions and artificial intelligence tools.
- Salesforce : specializes in providing customer relationship management (CRM) software via the cloud.
- Dropbox : Offers a storage service that allows you to save and share files online, with collaboration features.
- Slack : A communication platform for teams, facilitating collaboration through chat channels and file sharing via integrated tools.
Conclusion
Cloud computing has become a key element in the use of IT resources. It is considered a major technological advancement, and offers efficient and flexible solutions for managing IT infrastructures remotely.
The cloud also helps reduce costs, scale resource capacity to meet needs, and improve the performance of PCs and mini PCs, depending on their usage.