Pillars of Cloud Computing
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Abstract
Cloud Computing represents both the application that
are being delivered as services over the internet and as well as
the Hardware and the System Software’s that provide these
services. Cloud has totally changed the way IT Hardware and
Software is designed as purchased. With cloud the internet has
become a place where you not only browse websites and
download software but each and every thing you do on your
computers and much more is available. It can be looked as
everything has been moved to internet one just need only a
browser and everything is available space to store data, virtual
machines to run every kind of operating systems available, all
the software application can be accessed using the web browser.
These software applications and data is stored in the servers
that are placed in the data centres across the world to provide
better service to consumers. So cloud has bring a new era to the
computer world where one need not to buy or install the
software application or hardware you need to pay only for what
you use and this is the principle of the cloud computing. One of
the main feature of the cloud computing is the scalability which
is the ability to add or remove hardware and software according
to the need of the user, this process technically known as scale
up, adding more hardware or software and scale down,
removing existing hardware or software in cloud Datacenters to
meet the changing requirements of the user.
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Keywords:- Cloud Computing, SaaS, PaaS, IaaS,
Virtualization
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