tutorial Archive

Amazon offers wide variety of services for developers  to create scalable applications.A web application is scalable if it allows more number of users without affecting performance and speed.The application server would need more number of CPU cycles ‘s if the number of simultaneous users increases and hence you need additional CPU resource. Amazon EC2 known as Elastic Compute cloud provides the cloud infrastructure for the web applications. Amazon’s AMI (Amazon Machine Image) or instance is a virtual machine on the cloud that provide the processing power for your web application.For example, Instagram – a popular photo sharing application uses the amazon’s services to provide the scalability

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The most important part of increasing the webpage performance is to reduce the number of http requests,Which can be achieved by CSS Sprites.Sprite images require single http request to load the sequence of images but usually the sprite images are somehow difficult to construct and there is no automated tool available.Data URI is the alternate way of performance improvement instead of css sprites

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Facebook query language[FQL] is the SQL styled query language used to fetch the data from the graph api which we can tweak to build an application. Before beginning you need to know the basics of graph api and facebook platform which can be explained by this article. Facebook ‘s FQL is the easy way to fetch the information needed by your application.The query language is easily understandable since it resembles the SQL. We are going to create a facebook application to make the clear understanding about the facebook query language.The application is simple we will create a page which shows how many friends are still single. how many friends are Engaged Which city has your maximum number of friends See how to setup the basic facebook application Setup the

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