Introduction Over a decade, the four major and key technologies that contribute an effective cloud computing are:
• • • •
Virtualization Multi-tenancy Web services less expensive hardware
Technologies of Cloud Computing
1 Virtualization
2 Multi-tenancy
3
4
Web services
less expensive hardware
Virtualization
Virtualization • This allows the distribution of the machine based resources on the applications and permits for effective reconfiguration as required. • The virtual machine can be reused many times representing the system that can allow a greater computational power.
Advantages of Viatualization • The main advantage of virtualization is the flexibility of creating multiple number of virtual machines between distinct servers. • This technology involves an individual consideration between the actual hardware and the software applications. • With the use of existing hardware, the efficiency is improved and also to create a possibility for more production of the resources.
Multi-tenancy
Multi-tenancy • Multi- tenancy is a technology where several clients concurrently handle the same resource without interrupting other’s data. Different clients use a single application on the server. • Each client is considered as a tenant. Tenants are given access to personalize the parts of the application like making few changes on the user interface which does not affect the application’s code.
Multi-tenancy Models
Web Services
Web Services • Web services is a technology where the software system allows the communication between two systems in a network.
• This technology facilitates a consistent platform to the customers which allows them to access the applications. • XML is used for data tagging, SOAP is used for data transfer while WSDL is used for service description by the system.
Less Expensive Hardware
Less Expensive - Hardware • The hardware has been significantly inexpensive while there is a noticeable increase in the speed and efficiency of the processing • This technology has improved so quickly that it made a way for higher density servers. These servers closely pack computing power into a small and single area. • These technologies have transformed the development of software application which leads to the universal spread of cloud computing, back-up and storage.
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