云计算-展望、思考及实践.ppt

* * * * * They provide five main Services EC2 S3 SQS SimpleDB AWS premiun support * And here is a number of other companies that have built exciting applications on the web…. * G.ho.st (Global Hosted Operating SysTem, pronounced “ghost”) is a true web operating system (Web OS). G.ho.st provides a free web-based Virtual Computer (VC) which is available from any browser and includes an attractive personal desktop, files and data, applications and settings. G.ho.st VC works seamlessly with leading web applications in which users can consolidate all their online activities, from any computer, with a single username and password.G.ho.st also boasts free file storage (up to 3GB), G.ho.st Mail, fully automated security, backup, and update features, and more. G.ho.st is currently using the full suite of Amazon Web Services. Amazon EC2 is used as their scalable server farm, Amazon S3 is used for file storage, Amazon SimpleDB for storing and querying user data, metadata and more, and Amazon SQS powers G.ho.st’s Instant Messenger (IM). G.ho.st’s data center operations are built entirely on Amazon Web Services. * Case study and testimonials : NYTimes articles from 1851 -1922 available to the public online. There was a total of 11 million articles. They had to take sometimes several TIFF images and scale and glue them together to create one PDF version of the article. They used 100 EC2 instances to complete the job in just under 24 hours. They started with 4TB of data that was uploaded into S3 and through the conversion process created another 1.5TB. * SmugMug – (Storing their data on S3 and 15 employee and 1 programmer) Founded 5 years ago, SmuMug calls itself the ultimate in photosharing since it offers unlimited storage and stores backup copies of each photo in multiple datacenters. With more than 315,000 paying customers already, and 288,000,000 photos, SmugMug is a QED of cloud computing. * Animoto automatically generates professionally produced videos using their ow