Cloud Computing is an on-demand service for IT resources, including delivering cloud storage, development tools, servers, networking, and software analytics. The service refers to the process of tasks done through remote data centers.
The remote data center handling the tasks is managed by a cloud service provider, making the services available for a fee. Cloud computing eliminates the need for on-premises IT, furthermore eliminating the need for any direct active management of the user.
Moreover, these services allow companies even to minimize IT infrastructure costs. The most common examples of cloud computing, which almost everyone uses in their day-to-day life, without even noticing, are Gmail, Netflix, Dropbox.
How does Cloud computing work?
Cloud computing allows users’ systems to access data and web applications on remote servers. To further understand how the service works, let’s discuss its two divisions: front-end and backend.
Users can access the data stored on cloud servers using web browsers or special cloud computing software through the front-end. Meanwhile, the backend is where the actual work happens; comprising servers, computers, and databases, it is responsible for data storage.
Types of Cloud Computing
The service has three main models, each providing different ‘services.’
1. Infrastructure as a Service (IaaS)
In the most basic category of cloud computing, most of the services fall under this category. IaaS provides users access to networking features and data storage space. IaaS gives users the most flexibility and control over their IT resources.
2. Software as a Service (SaaS)
As the name suggests, the Software as a Service (SaaS) model provides software applications via remote servers, mainly termed ‘web applications.’ This model allows users to access web applications from anywhere globally via their devices.
3. Platform as a Service (PaaS)
The PaaS model of cloud computing service provides development tools using APIs, web portals, and gateway software. This model is used for general software development, and the Software is generally hosted after being developed. Google’s app engine is one such example.
While you might not realize it, you tend to use the service every day. You use cloud computing by sending emails, editing documents online, listening to music online, streaming movies, or playing games. While the technology is nearly a decade old, from small startups to major tech companies, even government bodies use the service.
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