presentation hci - copy
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Cloud computing
is an emerging computingtechnology that uses theinternet and central
remote servers tomaintain data andapplications.
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y The underlying concept of cloud computing dates back to1960, whenJohn McCarthy opined that "computation may somedaybe organized as a public utility .
y The actual term "cloud" borrows from telephony in thattelecommunications companies, who until the 1990s
primarily offereddedicated point-to-point data circuits, began offeringVIRTUAL PRIVATE NETWO RK (VPN) services withcomparable quality of service but at a much lower cost.
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y Helps to use applications without installations.y Access the personal files at any computer with internet
access.y This technology allows much more efficient
computation by centralizing storage, memory,processingand band width.
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y It stands for Software A s A Service .
y Deliver software as a service over the Internet.
y It eliminates the need to install and run the application onthe customer's own computers and simplifyingmaintenance and support.
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y It stands for Plateform A s A Service .
y (PaaS) " deliver a computing platform and/or solutionstack as a service.
y It facilitates deployment of applications without the costand complexity of buying and managing the underlying
hardware and software layers.
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y It stands for Infrastructure as a Service .
y It is a thing where people start and began to built.
y In IAA S we explain Cloud Hosting
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y Let s suppose that you are a company and you have awebsite, and the website has a lot of users
communicating with each other.y Increasing number of users Increase load on
websitey U ser s problemy Shrinks businessy U pload your website on servery This is Hosting .
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y You have to pay to the server whether you are using it ornot.
y
Some users have problem due to load on a single server.
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y E lectricity:y W hen switch ony
Meter starts readingy Pay according to use
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y Similarly, when you need computing, excess from cloud.y It doesn t relate with hardware.y Just related with Software
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y If you want to change in code or softwarey Excesss cloud server on personal computer
y Do require worky disconnect
Cloud Server
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y Key of cloud computing is not focus on H A RDWA RE .
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EXA MPLE :
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Reasons of Popularization:y There are 3 reasons:
I. Easy to growII. A s many servers you want, You excess
W hen you need you can instantly excess it.
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y C loud computing security (sometimes referred to simplyas "cloud security") is an evolving sub-domain
of computer security, network security, and, morebroadly, information security. It refers to a broad set of policies, technologies, and controls deployed to protectdata, applications, and the associated infrastructureof cloud computing.
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y Cloud computing is a better way to run your business.Instead of running your apps yourself,
they run on a shared data center.y W hen you use any app that runs in the cloud,y you just log in,y Customize it,y and start using it. That s the power of cloud
computing.
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Cloud computing is a simple ide a, but it c a n h av e a hugeimp a ct on your business.
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y Every technology has disadvantages. The one about CloudComputing is that it is not suitable for Governmentorganizations. Hosting on cloud means that your data is inother hands. Hosting sensitive and top secret data on acloud is not safe because obviously Cloud Computingservice providers are under terms with Government ssecurity intelligence agencies like FBI etc that have accessto that data anytime they need.
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