Wednesday, August 24, 2011

Cloud Computing

Written by Thilini



Cloud Computing is internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand. Typical cloud computing providers deliver common business applications online that are accessed from another Web service or software like a Web browser, while the software and data are stored on servers.


According to the wiki analysis:  "A simple example of cloud computing is Yahoo email or Gmail etc. You don’t need a software or a server to use them. All a consumer would need is just an internet connection and you can start sending emails. The server and email management software is all on the cloud (internet) and is totally managed by the cloud service provider Yahoo , Google etc. The consumer gets to use the software alone and enjoy the benefits. The analogy is , 'If you only need milk , would you buy a cow ?' All the users or consumers need is to get the benefits of using the software or hardware of the computer like sending emails etc. Just to get this benefit (milk) why should a consumer buy a (cow) software /hardware?"
Cloud computing is generally for anything that involves delivering hosted services over the Internet. These services are broadly segmented into three categories as:
  • Infrastructure-as-a-Service  (IaaS)

  • Platform-as-a-Service  (PaaS) 

  • Software-as-a-Service  (SaaS)

 The major cloud service providers include MicrosoftSalesforce, Skytap, HP, IBM, Amazon and Google.
The cloud can be either private or public. A public cloud sells services to anyone on the Internet. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people. When a service provider uses public cloud resources to create their private cloud, the result is called a virtual private cloud. 


In generally the cloud computing is to provide easy, scalable access to computing resources and IT services. 
Cloud Computing is internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand. Typical cloud computing providers deliver common business applications online that are accessed from another Web service or software like a Web browser, while the software and data are stored on servers.


According to the wiki analysis:  "A simple example of cloud computing is Yahoo email or Gmail etc. You don’t need a software or a server to use them. All a consumer would need is just an internet connection and you can start sending emails. The server and email management software is all on the cloud (internet) and is totally managed by the cloud service provider Yahoo , Google etc. The consumer gets to use the software alone and enjoy the benefits. The analogy is , 'If you only need milk , would you buy a cow ?' All the users or consumers need is to get the benefits of using the software or hardware of the computer like sending emails etc. Just to get this benefit (milk) why should a consumer buy a (cow) software /hardware?"
Cloud computing is generally for anything that involves delivering hosted services over the Internet. These services are broadly segmented into three categories as:
  • Infrastructure-as-a-Service  (IaaS)

  • Platform-as-a-Service  (PaaS) 

  • Software-as-a-Service  (SaaS)

 The major cloud service providers include MicrosoftSalesforce, Skytap, HP, IBM, Amazon and Google.
The cloud can be either private or public. A public cloud sells services to anyone on the Internet. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people. When a service provider uses public cloud resources to create their private cloud, the result is called a virtual private cloud. 


In generally the cloud computing is to provide easy, scalable access to computing resources and IT services.



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