Cloud computing has become a very
important topic of IT industry today, all IT firms are taking a step forward in
understanding and implementing this concept of cloud computing. This concept is
undoubtedly the future of our IT industry and its going to bring about a big
change in our lives. The world wide web provides us all the information we
need, it connects us to people, helps in carrying out our businesses, provides
us with applications to get our work done etc etc.. ,In near future world wide web
will no longer be just a source of information and connectivity but It is going
to be a main source of applications and
data storage as well. Applications that you run on your pc today would be run
on servers . Your computer would just act as an interface to connect to your desired applications via
the internet. With traditional desktop computing, you would run copies of software programs on your own computer. The documents you created were stored on your own pc. Although documents could be accessed
from other computers on the
network, they couldn’t be accessed by computers outside the network. Thus traditional
computing model was PC-centric. In Cloud computing the software programs one use aren’t run from one’s
personal computer, but are rather stored on servers accessed via the Internet. If a computer crashes, the software is still
available for others to use. Same goes for the documents one create; they’re
stored on a collection of servers accessed via the Internet. Anyone with
permission can not only access the documents, but can also edit and collaborate
on those documents in real time. Unlike traditional computing, this cloud
computing model isn’t
PC-centric, it’s Document-centric.
The cloud computing architecture is comprised of two significant parts:
the front end and the back end. The front end is the side at which the user of the computer or the client
himself is able to access the program or
programs that he uses to access the database or the servers that contain all
the data. The back end of the cloud computing architecture is the cloud
itself, which is the collection of all related information saved in the servers
that the client wishes to have access to. These two ends of the cloud
computing architecture are connected through a network, usually the Internet,
because it provides remote access to all the users of the cloud.