1.EC2 pricing starts at roughly a nickel per small Linux-based instance (CPU) hour, up to about half a dollar on a high-end Linux instance.6 S3 pricing is about $0.15 per GB per month, scaling downward as more storage is used.
2.Azure pricing is comparable to Amazon with computing time set at $0.12 per hour,storage at $0.15 per GB, and storage transactions at $0.01 per 10 KB. For the structured database, fees for the web edition are set at up to 1 GB relational database at $9.99 per month and for the business edition up to 10 GB relational database at $99.99 per month. A tiered, all-you-can-eat (within limits) model is said to becoming.
3.App Engine is free under these daily thresholds: 6.5 hours of CPU time, and 1 GB of data transferred in and out of the application. Beyond this, outgoing bandwidth costs $0.12 per GB, incoming bandwidth costs $0.10 per GB, CPU time is $0.10 per hour, stored data is $0.15 per GB per month, and recipients emailed are $0.0001 per recipient.
4.The Force.com list price is $5.00 per login with a maximum of five logins per user per month. According to the company’s website, “Force.com cloud pricing is for occasional-use, widely-deployed apps and is available for platform use only and not for CRM applications.”
5.Amazon EC2 is the most prominent example of IaaS. Microsoft Azure is mostly IaaS
as well but has many PaaS offerings. Google is the most prominent of the PaaS with
its App Engine. The plethora of Ruby on Rails offerings (such as Force.com from
Salesforce) are highly specialized types of platforms.
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