ADVANTAGES AND DISADVANTAGES OF CLOUD COMPUTING
What is Cloud Computing?
Cloud Computing is a computer term that are defined differently by several
people. In computer science, the word “cloud” stands for a network of computing
devices working together to provide services such as servers, storage and
applications.
How does Cloud work?
There are two layers
in a cloud: the back end layer and
the front end layer. The front end
layer is the one that you are able to see and interact with. For example, when
you access your profile on your Facebook
account, you are interacting with the front end layer. Meanwhile, the back
end includes the hardware and the software architecture that delivers the data
you see on the front end.
Electric
devices
users are allowed to access the resources which are allocated at the data
central via a company network or the internet or both from any location.
- Low cost: It is possible
that the most considerable benefit of Cloud Computing is IT cost reduction.
Clearly, the cost of managing and maintaining your IT systems is really high
due to expensive machine and equipment. Moreover, hiring a skilled system
administer is not cheap at all. With Cloud Computing, you are
no longer worried about the purchaser of physical machines, the cost of
maintenance as well as the periodical payment for staff hiring and energy
consumption.
- Flexibility: Thanks to
the vast capacity of the service’s remote servers, the Cloud
Server providers can
easily handle to satisfy you in case there is an increase in your need for
bandwidth. According to an InformationWeek survey, 65% of the survey
respondents admitted that they decided to use Cloud Computing because its special ability to support
their demand change quickly.
- Backup and Recovery: It
is easier to handle the process of backup and recovery on a cloud server compared to a physical server. Cloud
computing server providers take care of all those issues and solve the problems
quickly. Aberdeen Group found that it takes around 2.1 hours to resolve issues
of the users using Cloud service while those who do not use this kind
of service spends approximately 8 hours on fixing.
- Management: With Cloud
Server, there is a digital panel from which you can see the status of
everything running on infrastructure. The panel supports the CIO to detect
problems quickly and find out solution to the problem as soon as possible.
Besides, the software is updated automatically at no cost by the server
providers.
Disadvantages of Cloud
Computing
- Security: Although cloud
service providers heavily
invest in protecting their customers from security risks, it seems that there
still are some serious security concerns. Many people may not forget the case
of Code Space after its AWS
EC2 console was
hacked and its data was totally deleted, forcing the company to close doors
forever. Because your data is not stored at any specified physical server, it
is hard to say that it is well – protected.
-Downtime:
When you use Cloud Computing Service,
your business are completely dependent on the Internet connection because the
computing systems are internet - based. When it is offline, you're offline.
Large files, documents, images and web - based applications need a lot of
bandwidth to download. If you are using a low speed internet package, Cloud
Computing is not
a good choice at all.
- Support: Since the Cloud
server providers have
a lot of customers in all over the world, their tech team may not able to
handle everything quickly when the problems occur to many customers at the same
time.
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