| Cloud Computing means accessing the hosted | | | | kind of service provided by the Cloud, so there is no |
| services over the Internet. That means, we can | | | | limit to store data (based on the service provider). |
| access our documents or interact with our application | | | | · Device independence: The actual documents |
| or develop applications that are stored at the service | | | | are in the Cloud, so you can access it wherever you |
| provider from any place. | | | | are. |
| Cloud Computing Provides Various Services | | | | |
| · SaaS: Software-as-a-service products provide | | | | The cons: |
| complete hardware infrastructure and software | | | | · Requires a constant High speed Internet |
| applications. User has to interact with it using front-end | | | | connection: To get benefit from this we need to have |
| tool no matter where he is, e.g. · PaaS: | | | | always a high speed Internet connection. |
| Platform-as-a-service products provide some | | | | · Stored data might not be secure: There is no |
| softwares and development tools also. Users can | | | | guarantee that your data stored is in cloud is securely |
| create their application in provider's infrastructure at | | | | protected. Intruders may access to your vital data at |
| any place, e.g. GoogleApps. | | | | any time. |
| · IaaS: Infrastructure-as-a-service products | | | | |
| provide virtual server and memory. Users have to use | | | | Who will get maximum benefit from the cloud? |
| providers API to start stop access and configure their | | | | · Managers or Collaborators: Whoever |
| virtual server, e.g. Amazon web services. | | | | requires to share and edit documents in real time |
| · DaaS: Desktop-as-a-service enables us to use | | | | between multiple users. |
| our desktop virtually from anywhere. | | | | · The cost conscious user: Whoever wants to |
| | | | invest less on hardware such as harddisks and |
| The Pros and Cons | | | | processor. |
| The pros: | | | | · Who wants more storage space: Whoever |
| · Lower computer costs: Not necessary to | | | | wants to store huge amount of data with low |
| have high-powered computers to access web | | | | maintenance costs. |
| applications. Even with cheaper computer also can | | | | Though there are many advantages of Cloud |
| give efficient results because data is stored in the web | | | | Computing, we cannot ignore the drawbacks. It is being |
| not with us. | | | | compared with Centralized systems of the 50's and |
| · Improved performance: Everything is run in | | | | 60's that crippled the freedom of the users. However, |
| cloud so our computer doesn’t have to take much | | | | if the apprehensions raised are properly addressed, |
| effort to run applications. As a result, performance will | | | | there is no doubt that Cloud Computing can transform |
| be improved automatically. | | | | the way we do computing in the future that is not so |
| · Unlimited storage capacity: Storage is also one | | | | far. |