Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. Google App Engine
is a platform for developing and hosting web applications in
Google-managed data centers. It was first released as a beta version in
April 2008. Google App Engine is cloud computing technology. It
virtualizes applications across multiple servers and data centers. Other
cloud-based platforms include offerings such as Amazon Web Services and
Microsoft's Azure Services Platform. Google App Engine is free up to a
certain level of used resources. Fees are charged for additional
storage, bandwidth, or CPU cycles required by the application.