What is Cloud Computing

What is Cloud Computing

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Cloud computing is the on-demand delivery of computing services which includes servers, data storage, databases, networking, software, analytics, and intelligence.

In cloud computing customer will have to pay only for the services he/she uses. As business change customer can scale their application based on their business requirements.

Benefits of cloud computing

Cost 

By using cloud computing services, we can eliminate the expenses of purchasing the software and hardware resources that are used in the data centers. The entire infrastructure operations such as electricity, power, cooling, round-the-clock operations, server scaling, etc are done for us by the cloud provider.

Speed

Cloud computing providers are very fast at delivering services and are mostly self-service. A lot of things are done within minutes including the creation of servers, managing databases, etc, this enables businesses flexibility and on-time service delivery to clients.

Security

Cloud computing provides best security practices that include policies, and technologies that strengthen the security of the applications or software's that are hosted on the cloud. This reduces the risk of exposure to potential threats.

Uses of cloud computing

  • Creating cloud-native applications
  • Testing and building applications
  • Storing and backing up data
  • Data Analysis
  • Audio and video streaming services

Service Models

Infrastructure as a Service (IaaS):

Infrastructure as a service refers to online services that provide network infrastructure such as physical computing, resources, location, data partitioning, scaling, backup etc. It provides on-demand access to fundamental computing services.

infrastructure as a service

Software as a Service (SaaS): 

It is the application software that is hosted on the cloud, these applications are accessed by the user through web browsers. SaaS is the primary delivery model for most commercial software today.

software as a service

Platform as a Service (PaaS): 

PaaS provides software developers with on-demand platform such as hardware, complete software stack, infrastructure, and even tools which are used for deployment and for running, developing, and managing applications without the cost, complexity, and inflexibility of maintaining that platform on-premises.

platform as a service

Cloud computing deployment models

Public Cloud:

These are run by third party cloud providers. They offers below things:

  • Compute
  • Storage
  • Network resources

Private Cloud:

These are owned by specific organization and are privately hosted in their own data centers. These are generally konwn as on-premises cloud.

They provide below things:

  • Greater control over resources
  • Security
  • Data management

Hybrid Cloud:

This is the combination of both private and public clouds.

Useful Links

https://en.wikipedia.org/wiki/Cloud_computing

https://www.techtarget.com/searchcloudcomputing/definition/cloud-computing

https://www.infoworld.com/article/2683784/what-is-cloud-computing.html