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CHAPTER
            CLOUD COMPUTING                                                                          6                                          WHAT IS CLOUD COMPUTING?


                                                                                                                                      In computers,  we use  the term  cloud  to  represent  a
                                                                                                                                      network or internet. The term cloud is used for various
                                                                                                                                      services like storage, servers etc. Cloud computing is an
                                                                                                                                      Internet-based  service that  helps users to  get  shared

                                                                                                                                      resources, software, and information over a network on
                                                                                                                                      demand. It also helps users to store and access the data
                                                                                                                                      and services. It is not required to install all the software
                                                                                                                                      or resources for accessing them. We can use these services directly through remote server and
                                                                                                                                      web-based applications. The information and data can be accessed from anywhere at anytime.


                         Shweta, you take  quite  a lot  of            Topics Covered                      95%                        BENEFITS OF CLOUD COMPUTING
                         photographs. Do you know where                   What is Cloud Computing?                                    Following are some benefits of cloud computing:
                         they are stored?                                 How does Cloud Computing Work?
                                                                          Cloud Storage Service Providers                                Easy Accessibility: Cloud services are available and accessible globally to everyone who has
                                                                          Storing Data using Cloud Computing                             a computer or any device with an Internet connection. No specialised hardware or software is
                                                                          Sharing Files                                                  required.
            That's so simple, they are stored in                          File Shared with You                                           Cost Effective: One has to pay minimal to no subscription charges to avail the services. It saves
            mom's phone.                                                  Types of Cloud Services                                        us from buying expensive specialised hardware or software.

                                                                                                                                         Flexibility: The services provided by cloud computing are available 24 hours of the day and
                                                                                                                                         seven days a week, and can also allow us to increase and decrease computing needs, hence,
                                                                                                                                         providing users with the flexibility to work as per their requirement.

                           Yes, but have you ever wondered, what happens if your mom's phone runs out                                    Shares  Workload  with  User:  The user’s computer  is not  burdened  with different types  of
                           of space?                                                                                                     software and programs, and the space required for software is lifted off  the user’s memory.


                                                                                                                                                HOW DOES CLOUD COMPUTING WORK?
            Well, I never thought of it? What would happen if her phone runs out of storage?
                                                                                                                                      Cloud computing can be divided into two sections: front end and the back end. Internet is the link
                                                                                                                                      that joins both these ends. The front end belongs to the users/clients from where they access the
                                                                                                                                      Internet for data, and the back end belongs the cloud computing provider.
                           If your mom's phone runs out of space then it won't work anymore. But we can
                           use cloud computing to store the data in online servers.                                                   The front end includes computers, simple applications, and all the means required to access the
                                                                                                                                      cloud servers. The back end includes various applications and the dedicated servers for each
                                                                                                                                      computer program. This gap between the client and the cloud is then bridged by the Internet.
                                                            Cloud computing? What is that?


                                                                                                                                                CLOUD STORAGE SERVICE PROVIDERS

                           Cloud computing is a technology that allows you to use different applications and                          Cloud computing provides a facility to store, organise and edit data through the network. The
                           features through Internet. In this chapter, I will tell you more about this.                               data can also be shared with others using cloud storage. There are many service providers that
                                                                                                                                      gives the facility of cloud storage. Let us discuss about some of them.




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