Cloud Computing

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Why cloud computing? In the present scenario internet usage became very peak from every activity in our daily life. Progress of using Internet growing every day. To fill the gaps like speed, security, data storage, reduce cost of internet, reliable, virtualization resources environment. When online business are growingexistence the need of cloud computing also increased. What is cloud computing? Cloud computing is a type of Internet-based computing that provides shared computer processing resources and data to computers and other devices on demand. Cloud computing adopts concepts from Service-oriented Architecture (SOA) that can help the user break these problems into services that can be integrated to provide a solution. Cloud computing provides all of its resources as services, and makes use of the well-established standards and best practices gained in the domain of SOA to allow global and easy access to cloud services in a standardized way. Cloud computing allow hardware and software that are managed by third-parties which are located remote location i.e entire world. Cloud computing model allows to access information and computer resources from anywhere in the world where ever internet connection availability. Deployment Models of cloud computing are four:      Private cloud: This allows more secured due to private which is limited to single organization only. 2.  Public cloud: This allows to easily accessible to general public which is less secured due to openness Ex.Email. 3.  Hybrid cloud : This is combine feature of private and public according to the requirement for critical department they use private and for general public use public cloud accessible . 4. Community cloud : This allows accessible to group of organizations. Characteristics of Cloud Computing: ON DEMAND SELF-SERVICE : Cloud Computing allows the users to use web services and resources on demand. One can logon to a website at any time and use them. BROAD NETWORK ACCESS : Since Cloud Computing is completely web based, it accessed from anywhere and at any time. RESOURCE POOLING : Cloud Computing allows multiple tenants to share a pool of resources. One can share single physical instance of hardware, database and basic infrastructure. RAPID ELASTICITY : It is very easy to scale up or down the resources at any time. Resources used by the customers or currently assigned to customers are automatically monitored and resources. It make it possible. MEASURED SERVICE : Service Models & Deployment Models are concerned with measured service. Applications: Ø        Social Networking sites like Facebook, twitter, LinkedIn,  instagram, and whatsApp utilize cloud components and  storage methodologies. Ø  E-mail sites that utilize cloud computing facilities  includes Gmail,Yahoo,Rediff,Hotmail etc. Ø  Search Engines like Google, Bing, Yahoo etc apply  cloud computing tools in their deployment. Ø  There are many more services over the internet that  either directly utilizes or receives adequate support from  cloud computing systems. Ø  Online sale marketing i.e Ecommerce websites  utilizing  Cloud Computing. Advantages: Ø Lower Computing Cost Ø Improved Performance Ø Reduced Software Cost Ø Instant Software Updates Ø Unlimited Storage Capacity Ø Increased Data Reliability Ø Device Independence and the “always on!, anywhere and any place” Ø Free From Maintenance and the “no-need-to-know” Disadvantages: Ø Requires a constant Internet connection. Ø Does not work well with low-speed connections. Ø Features might be limited. Ø Can be slow. Ø Stored data might not be secure. Ø Stored data can be lost. Other Related Topics: Uses of Cloud Computing About Ubuntu