Cloud computing is internet-based computing that provides shared computing resources and services over the internet. There are three main types of cloud computing: public cloud which provides services over the internet from an off-site third party provider; private cloud which provides hosted services behind a company's firewall; and hybrid cloud which integrates multiple internal and external cloud services. Cloud computing architecture consists of software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS) that provide user interfaces, development platforms, and basic computing resources respectively on-demand over the internet.

1. Virtualization TechnologySteven Shen 2010/09/29Squall Liao 2010/09/29

2. AgendaCloud Computing

3. Cloud ComputingWhat is Cloud Computing?

4. Cloud ComputingCloud computing is Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand, like the electricity grid.

5. Cloud Computing Types

6. What is Public Cloud?Public Cloud (external Cloud)Public cloud or external cloud describes cloud computing in the traditional mainstream sense, whereby resources are dynamically provisioned on a fine-grained, self-service basis over the Internet, via web applications/web services, from an off-site third-party provider who bills on a fine-grained utility computing basis.

7. What is Private Cloud?Private Cloud (Internal Cloud or Corporate Cloud) Private Cloud is a marketing term for a proprietary computing architecture that provides hosted services to a limited number of people behind a firewall.Advances in virtualization and distributed computing have allowed corporate network and datacenter administrators to effectively become service providers that meet the needs of their "customers" within the corporation.

8. What is Hybrid Cloud?A hybrid cloud environment consisting of multiple internal and/or external providers "will be typical for most enterprises".By integrating multiple cloud services users may be able to ease the transition to public cloud services while avoiding issues such as PCI compliance.Another perspective on deploying a web application in the cloud is using Hybrid Web Hosting, where the hosting infrastructure is a mix between Cloud Hosting for the web server, and Managed dedicated server for the database server.

9. Cloud Computing ArchitectureClientsApplication(User Interface, Machine Interface)Software as a Service, SaaSPlatform(Components, Services)Platform as a Service, PaaSInfrastructure(Compute, Network, Storage)Infratructure as a Service, IaaSServers

10. Software as a ServiceSaaS

11. Platform as a ServicePaaS

12. Infrastructure as a ServiceIaaS

13. Q & A

14. Thank You!!Squall Liao2010/09/01