Cloud Computing : Cloud Computing Services and Cloud Operating System
2. Cloud Computing
2.4 Some cloud computing services
1. Email Services: Allows sending of bulk emails at minimal costs. Many cloud email service providers offer domain-name capabilities, so that your emails appear to be sent and received on your own domain, even though you are using their servers. Also, you don't have to worry about Spam protection and software updating. Some cloud email services are Google Apps, PanTerra Networks, Cisco WebEx Email, Yahoo Zimbra, IBM LotusLive iNotes, Microsoft Exchange online and Rackspace Email.
2. Document sharing: This service store files on the server and allows you to access it from anywhere. They can be as simple as a file repository to more sophisticate things that create entire networks of virtual computers for applications and databases. Some cloud document sharing services are: Microsoft's Live Office, Google Docs and Box.net.
3. Database services: These services provide database running on cloud computing platform. Users can run databases on the cloud independently, using a Virtual Machine image, or they can purchase access to a database service, maintained by a cloud database provider. Of the databases available on the cloud, some are SQL-based and some use a NoSQL data model. Some cloud database services are: Microsoft SQL Azure Database, SimpleDB by Amazon Web Services, Google App Data Store.
4. Application Hosting: This service provides Web hosting and much more, including storage, load-balancing, elastic scalability, authentication services and integration with local network. It reduces the overhead cost of server hardware and other applications, and is suitable for companies that are looking forward to cut cost. Some cloud application hosting services are: Microsoft Windows Azure, Google App Engine, Rackspace.
2.5 Cloud Operating System