Amazon
Amazon Elastic Compute Cloud is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale computing easier for developers. With Amazon, you get anywhere between 5GB and 1TB depending on how much you’d like to pay for. Amazon passes on to you the financial benefits of Amazon’s scale. You pay a very low rate for the compute capacity you actually consume. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon’s cloud reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use. Amazon EC2 provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios.
Cost:
Inexpensive – Amazon EC2 passes on to you the financial benefits of Amazon’s scale. You pay a very low rate for the compute capacity you actually consume. See Amazon EC2 Instance Purchasing Options for a more detailed description.
Amazon EC2 Purchasing Options:
In addition to providing the flexibility to easily choose the number, the size and the configuration of the compute instances you need for your application, Amazon EC2 provides customers three different purchasing models that give you the flexibility to optimize your costs. On-Demand Instances allow you to pay a fixed rate by the hour with no commitment; with Reserved Instances you pay a low, one-time fee and in turn receive a significant discount on the hourly charge for that instance; and Spot Instances enable you to bid whatever price you want for instance capacity, providing for even greater savings if