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Cloud computing is a way for providing computing resources over internet. The computing resources include physical or virtual servers, data storage, networking capabilities, application development tools, software, analytic platforms and more.

The term cloud in cloud computing refers to internet. When we use cloud services, we are basically accessing remote servers, powerful mainframe computers housed in large data centers, through the internet. The cloud computing model gives users, greater flexibility and scalability compared to traditional on-premises infrastructure.

 

Benefits of Cloud Computing

The cloud computing provides several benefits such flexibility and reliability, increased performance and efficiency, and lower IT costs, when compared to on-premises compute resources. In on-premises, the company owns and maintains physical data centers and servers. Lets discuss some benefits as follows −

• Cost Savings − organizations can rent computing resources on-demand instead of buying expensive physical servers.  You can choose any cloud service model and you only pay for the resources you actually use.
• Scalability − organizations can quickly scale up and scale down their compute resources to meet the changing demands. The benefits of cloud computing services include the ability to scale elastically.
• Performance − Cloud computing offers greater performance by reducing the network latency for applications.
• Reliability − Cloud computing makes data backup, disaster recovery easier and less expensive.
• Productivity − On-premises datacenters typically require a lot of hardware and software setup, other time-consuming IT management chores. Cloud computing removes the need for many of these tasks, improving the performance of IT teams.
• Security − Cloud computing providers offers security for your data, applications, etc., from potential threats.

Types of Cloud Computing

There are mainly four types of cloud computing models −

• Public Cloud Model
• Private Cloud Model
• Hybrid Cloud Model
• Community Cloud Model

These models are used to deploy cloud services. Within these deployment models, there are mainly four cloud services: software as a service (SaaS), platform as a service (PaaS), infrastructure as a service (IaaS) and serverless computing.