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What is Cloud Computing ?

by Ismail.EL
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1. What is Cloud Computing ?

Cloud computing is a model for enabling ubiquitous network access to a shared pool of configurable computing resources.
For an example of Amazon cloud services you can create, manage server instances and many other services.

2. Main services of Cloud Computing ?

Cloud computing services are divided into three catégories: , IaaS, PaaS and Saas:

  • Software as a Service (SaaS) : software runs on computers owned and managed by the SaaS provider, versus installed and managed on user computers.
  • Infrastructure as a Service (IaaS) : compute, storage, networking, and other elements (security, tools) are provided by the IaaS provider via public Internet, VPN, or dedicated network connection. Users own and manage operating systems, applications, and information running on the infrastructure and pay by usage.
  • Platform as a Service (PaaS) : All software and hardware required to build and operate cloud-based applications are provided by the PaaS provider via public Internet, VPN, or dedicated network connection.

3. How cloud computing services work:

Cloud computing services have several common attributes:

  • Virtualization: cloud computing utilizes server and storage virtualization extensively to allocate/reallocate resources rapidly
  • Multi-tenancy: resources are pooled and shared among multiple users to gain economies of scale
  • Network-access:resources are accessed via web-browser or thin client using a variety of networked devices (computer, tablet, smartphone)
  • On demand: resources are self-provisioned from an online catalogue of pre-defined configurations
  • Elastic: resources can scale up or down, automatically
  • Metering/chargeback: resource usage is tracked and billed based on service arrangement

4. Benefits cloud computing ?

  • Achieve economies of scale – increase volume output or productivity with fewer people. Your cost per unit, project or product plummets.
  • Reduce spending on technology infrastructure. Maintain easy access to your information with minimal upfront spending. Pay as you go (weekly, quarterly or yearly), based on demand.
  • Globalize your workforce on the cheap. People worldwide can access the cloud, provided they have an Internet connection.
  • Streamline processes. Get more work done in less time with less people.
  • Reduce capital costs. There’s no need to spend big money on hardware, software or licensing fees.
  • Improve accessibility. You have access anytime, anywhere, making your life so much easier!
  • Monitor projects more effectively. Stay within budget and ahead of completion cycle times.
  • Less personnel training is needed. It takes fewer people to do more work on a cloud, with a minimal learning curve on hardware and software issues.
  • Minimize licensing new software. Stretch and grow without the need to buy expensive software licenses or programs.
  • Improve flexibility. You can change direction without serious “people” or “financial” issues at stake.

5. Conclusion

In this post, we are talking about Cloud Computing and Benefits cloud computing
If you have any questions or feedback, feel free to leave a comment.
As always, if you found this post useful, then click like and share it 🙂

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