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Cloud services, or cloud computing services, are offered by specialized providers, allowing businesses and end-users to access computing resources such as servers, storage, databases, software, cybersecurity, and other resources over the internet.
These resources are provided on-demand, meaning users only pay for what they use without worrying about purchasing, installing, or maintaining hardware or software.
In other words, cloud services enable businesses to leverage computing resources without the need for direct acquisition, installation, or management, thus reducing operational costs and initial investments for hardware and software.
Three service models
Cloud services are available in three primary service models:
- Infrastructure-as-a-Service (IaaS): Provides users with access and control over basic infrastructure such as servers, networking, storage, and operating systems. This model is ideal for companies that want to directly manage their IT infrastructure.
- Platform-as-a-Service (PaaS): Offers a development and execution environment for applications, along with the necessary infrastructure resources to support them. This model is beneficial for businesses looking to develop and deploy applications without managing the underlying infrastructure.
- Software-as-a-Service (SaaS): Delivers complete applications running on cloud infrastructure, eliminating the need for users to install and manage the application on their own devices or servers. This model is suitable for businesses wanting to use applications without dealing with infrastructure management.
Major public cloud providers
Several providers offer large-scale cloud solutions and can manage the complexity of the underlying infrastructure, allowing companies to focus on their core operations. Here are some of the leading public cloud platforms currently available:
- Amazon Web Services (AWS): One of the largest and most established public cloud providers, offering a wide range of cloud services, including IaaS, PaaS, and SaaS.
- Microsoft Azure: Microsoft’s cloud platform provides IaaS, PaaS, and SaaS services, supporting various programming languages, tools, and frameworks.
- Google Cloud Platform (GCP): Google’s cloud platform offers IaaS, PaaS, and SaaS services and is known for its scalability, security, and ability to handle large volumes of data.
- IBM Cloud: IBM’s cloud platform offers IaaS, PaaS, and SaaS services, focusing on security and compliance.
- Oracle Cloud: Oracle’s cloud platform provides IaaS, PaaS, and SaaS services and is recognized for its integration capabilities with existing Oracle applications.
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