Cloud Computing Cloud computing: (the Internet represents the Cloud). The is the platform for computing. Rather than running software on a local computer or server, Internet users reach to the “cloud” to combine software applications, data storage and massive computing power. Anything that you do over the Internet that you used to do on a local computer is a form of cloud computing. Applications run off of Internet servers. Data is stored on Internet servers Cloud Computing is based on 3 models Infrastructure-as-a-service Platform-as-a-service Software-as-a-service

Infrastructure-as-a-service Infrastructure to run software and store data Servers, networks, storage capacity Servers remotely accessible. Platform-as-a-service Platforms to run existing applications and to develop and test new custom applications. Software-as-a-service The is licensed to customers as a , using a model or subscription model (like monthly subscription) Applications rather than on the desktop. Desktop-as-a-service where your desktop applications .

A Web Services: the recognized leader of cloud computing Personal Cloud Computing Dropbox Google Docs iCloud Microsoft Office 365 Google Drive

Benefits of Cloud Computing Reduced hardware and software costs Someone else , you don’t have upfront costs Someone else provides the hardware, software, training, support services, help desk, trouble shooting, security and upgrades Easy to switch to another provider if you are unhappy Pay only for what you use. Quick access to new upgrades (and upgrades happen on the server, rather than on the end-user desktops) Interface to applications is typically (IE, FireFox, Safari, etc.) What is Cloud Computing? http://www.youtube.com/watch?v=ae_DKNwK_ms&feature=player_embedded