Sunday, 2 April 2017

Windows Azure and Cloud Computing - A Glance

Windows Azure, which was later renamed as Microsoft Azure in 2014, is a cloud computing platform, designed by Microsoft to successfully build, deploy, and manage applications and services through a global network of datacenters. 

The popular trend in today's technology driven world is ‘Cloud Computing’. Cloud computing can be referred to as the storing and accessing of data over the internet rather than your computer's hard drive.

One prominent example of cloud computing is Office 365 which allows users to store, access, edit their MS Office documents online (in browser) without installing the actual program on their device.



Types of Cloud
The storage options on cloud is in 3 forms −
  • Public
  • Private
  • Hybrid
    Public Cloud − A service provider makes the clouds available to the general public which is termed as a public cloud. These clouds are accessed through internet by users. These are open to public and their infrastructure is owned and operated by service providers as in case of Google and Microsoft.
         Private Cloud − These clouds are dedicated to a particular organization. That particular organization can use the cloud for storing the company's data, hosting business application, etc. The data stored on private cloud can't be shared with other organizations. The cloud is managed either by the organization itself or by the third party.
         Hybrid Cloud − When two or more clouds are bound together to offer the advantage of both public and private clouds, they are termed as Hybrid Cloud. Organizations can use private clouds for sensitive application, while public clouds for non-sensitive applications. The hybrid clouds provide flexible, scalable and cost-effective solutions to the organizations.

Benefits of Cloud

There are many benefits of clouds. Some of them are listed below.
·     Cloud service offers scalability. Allocation and de-allocation of resources is dynamically as per demand.
·    It saves on cost by reducing capital infrastructure.
·    It allows the user to access the application independent of their location and hardware configuration.
· It simplifies the network and lets the client access the application without buying license for individual machine.
·   Storing data on clouds is more reliable as it is not lost easily.

SPI


Next comes how cloud services are categorized. S stand for Software, P stands for Platform and I for Infrastructure in SPI. SaaS is Software as a service; PaaS is Platform as a service and IaaS is Infrastructure as a Service.
Following are the live examples of these models.
·        SAAS Model − E-mail (Gmail, Yahoo, etc.)
·        PASS Model − Microsoft Azure
·        IAAS Model − Amazon S3


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