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What is Cloud computing ?

Updated on 30 January 2023
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Deepak Gupta
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Updated on 30 January 2023
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Cloud computing is on-demand access, via the internet, to computing resources—applications, servers (physical  and virtual), data storage, development tools, networking capabilities, and more—hosted at a remote  data center managed by a cloud services provider . The CSP makes these resources available for a monthly subscription fee or bills them according to usage.

Compared to traditional on-premises IT and depending on the cloud services you select, cloud computing helps do the following:

  1. Lower IT costs: Cloud lets you offload some or most of the cost and effort of purchasing, installing and managing your own on-premises infrastructure.
  2. Improve agility and time-to-value: With cloud, your organization can start using enterprise applications in minutes, instead of waiting weeks or months for IT to respond to a request, purchase and configure supporting hardware, and install software. Cloud also lets you empower certain users specifically developers and data scientists—to help themselves to software and support infrastructure.
  3. Scale more easily and cost-effectively: Cloud provides elasticity—instead of purchasing excess capacity that sits unused during slow periods, you can scale capacity up and down in response to spikes and dips in traffic. You can also take advantage of your cloud provider’s global network to spread your applications closer to user around the world.

Cloud Computing also refers to the technology that makes cloud work. This includes some form of virtualized IT infrastructure—servers, operating system software, networking, and other infrastructure that’s abstracted, using special software, so that it can be pooled and divided irrespective of physical hardware boundaries. For example, a single hardware server can be divided into multiple virtual servers.

Virtualisation enables cloud provider to make maximum use of their data center resources. Not surprisingly, many corporations have adopted the cloud delivery model for their on-premises infrastructure so they can realize maximum utilization and cost savings vs traditional IT infrastructure and offer the same self-service and agility to their end-users.


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