5. In other words, this is a collection/group of integrated and networked hardware, software and Internet infrastructure.
6. Using the Internet for communication and transport provides hardware, software and networking services to clients.
7. These platforms hide the complexity and details of the underlying infrastructure from users and applications by providing very simple graphical interface or API (Applications Programming Interface).
50. Software as a Service (SaaS) Model Proprietary internal IT resources Remote, shared services SaaS Provider Company A Company B Company C Internet Company A Company B Company C Traditional Software Model 22 8/14/2010
84. You do not need a high-powered and high-priced computer to run cloud computing's web-based applications.
85. Since applications run in the cloud, not on the desktop PC, your desktop PC does not need the processing power or hard disk space demanded by traditional desktop software.
86. When you are using web-based applications, your PC can be less expensive, with a smaller hard disk, less memory, more efficient processor etc.
87.
88. Another advantage to cloud computing is that you are no longer faced with choosing between obsolete software and high upgrade costs.
89. When the application is web-based, updates happen automatically - available the next time you log into the cloud.
90. When you access a web-based application, you get the latest version - without needing to pay for or download an upgrade.
99. Unlike desktop computing, in which if a hard disk crashes and destroy all your valuable data, a computer crashing in the cloud should not affect the storage of your data.
100. That also means that if your personal computer crashes, all your data is still out there in the cloud, still accessible.
119. A next- generation of “Middleware for the cloud” will rise in dominance over traditional J2EE Application Servers
120.
121. 8/14/2010 38 This was what the pioneers in the field concluded… Cloud computing is using the internet to access someone else's software running on someone else's hardware in someone else's data center. In this architecture, the data is mostly resident on servers ‘somewhere on the Internet’ and the application runs on both the ‘cloud servers’ and the user’s browser. Cloud computing is an emerging approach to shared infrastructure in which large pools of systems are linked together to provide IT services. Eric Schmidt Lewis Cunningham, Oracle Ace Director IBM press release on “Blue Cloud” It’s one of the foundations of the next generation of computing. . .. It’s a world where the network is the platform for all computing, where everything we think of as a computer today is just a device that connects to the big computer we’re building. Cloud computing is a great way to think about how we’ll deliver computing services in the future. We really don’t want to operate data centres anymore. We’d rather spend our time giving our customers great service and writing great software than managing physical hardware. Don MacAskill, CEO, SmugMug Tim O’Reilly, CEO, O’Reilly Media
122.
123. A powerful new abstraction for large scale data processing systems