The below is from ibm tutoriuals related to Flex development
Client-side caching. Flex offers superb support for client-side caching. With the user's permission, a Flex application can cache unlimited data on the client side
Can anybody please let me know how or what components are responsible are there in Flex to achieve this kind of behaviour ??
Flash can store anything it likes in a defined temporary area on disk. Next time you load a Flash application, right click and choose "settings" - you'll see an option about Global Stroage Settings. The Flex documentation covers how you can do this.