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Tran,Jennifer Le

        Chapter 4: Cloud Computing
                                                                                                
     From many article sources that I have came across, I found a really good definition to what is Cloud Computing. Going to Wikipedia, it was able to really define in a easy matter of what Cloud Computing is. For example, if you are running a school, and you have many computers that need all the updated software, instead of uploading each software to the computer, you can simple have a cloud computing database. By having the cloud, you can have the computer be log into the school database, and all of the need applications will be ready. HowStuffWorks, is a really great website that explain the example I have given.
 

YouTube Video

  
  If you look to the right, you will see I have provided two YouTube video that explains what cloud computing is. The first video is Steve Job doing a conference to promote and talk about apple, however, a critic asked Mr. Job what his vision about the community of servers. Mr. Job explains the software he created, which is basically the cloud, where he could upload his data into the software at home, and not back it up in a floppy disk, and where ever he is at, he can log into the software and open the data that he was currently working on. 





YouTube Video on Cloud Computing


As for this second video on the left, it breaks down the information in a very easy matter to understand how the cloud computing works. In this animated video, it is easy to understand what cloud computing can do, and the advantages over network server. Instead of having a server that goes straight to the roof, cloud computing saves a lot of money and space.













  





















      



 
 
 For all of the techies out there, I found this article that really goes in depth into what cloud computing is, and the different stages to it.     
 
For example, according to Educause Quarterly, there are 5 characteristics to cloud computing: 

                    1. On Demand Self-Services 
                            - Everything is right there for the user disposable

                    2. Resources Pooling
                            - User are able to pick and chose which software they need for their business

                    3. Rapid Elasticity 
                            - User are able to get all the updated software to date 

                    4. Broad Network Accesses
                            - Able to access any software anywhere

                    5. Measure Services 
                            - User pay what they use

        By going to Educause Quarterly, they provide YouTube videos on each of the 5 characteristics,  
    and give a more in-dept explanation to them, but also there are many other interesting facts about 
    Cloud Computing on Educause Quarterly website. 

 
        When to use cloud computing? 
    • Big Business
    • Big Institution       
     I say big businesses and institutions, because they both use a lot of collaborations within the
environment they are in, and also, run the same software to do their business activities. According to
Info.Apps.Gov , they provide a table of when it is best to use cloud computing.

  
          Are their different types of cloud computing?
                    - Yes, there are 4 different types. Info.Apps.Gov provides the definition to each of them.
  • Private: the company or a third party provides the cloud and are able to change and manage the database. Employees are able to access the database by logging into the company or third party webpage.
  • Public: anyone can access the cloud by a private party. The private party can sell the services to the public, example: Dropbox.
  • Community: people within a specific community is able to access that particular cloud, by logging into the secured, password access only database. 
  • Hybrid: it consist of two or more cloud, combining into one.   

Cloud Services Per Deployment Model
 Here, on the left, is a picture of the different cloud computing, provided by Info.Apps.Gov 
 
This picture show how well each of the four cloud scale on the security and the complexity and cost. 

 
The Internal Private Cloud, has the most security, it is very complex and most expensive to operate. This is because everything is run and monitor within the business,. 
 
The Internal Public Private Cloud (hybrid), has high security, low complexity and cost. This is because, the business is monitoring the database, but there is not much complicity on running it.  
 
The Outsourced Private Cloud, is low on security, but is very complex and expensive. This is because, respectively  the company is not monitoring very closely to its own systems, and it is using a third party for its resources.

Lastly, the Public Cloud, it is very low on its security and it is not complex and very inexpensive. This is because, anyone is able to use the cloud, and they are responsible to monitor their own personal use. 

 
        My Thoughts:
            Cloud Computing is a great way to save money, get all the updated software and be able to access any work related things at any place at any time. It may be costly for big business, however, I believe that it is a great investment, because the company does not have to spend extra money on getting the lastest software, updates, and time inputing and fixing any software malfunction.
            Cloud Computing can be very handly for people who work from home, because they are able to keep up with their work even when they are not in the office. They can also collaborate with other employees on different projects and management can over see their employees work and be able to assist with anyone that may need it.
            By having everything at your exposal, you are able to get a lot of work done, either at the office, or anywhere that you are able to get access to the interent. Cloud computing is a great investment to have.
 
 
        With the websites and YouTube videos I have provided, the basic definition of cloud computing in a nut shell was given by Cloud Computing World: "the ability to employ a number of computers, hardware, software, and servers to serve your computing needs remotely without actually owning or running the software and hardware."
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