Enablers of cloud computing

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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