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**Magento\Framework\App** implements most of the Magento application framework.
Unlike other components of **Magento\Framework** that are generic libraries not specific to Magento application, the **Magento\Framework\App** is "aware of" Magento application intentionally.
The library implements a variety of features of the Magento application:
* bootstrap and initialization parameters
* error handling
* entry point handlers (application scripts):
* HTTP -- the web-application entry point for serving pages of Storefront, Admin, etc
* Static Resource -- for retrieving and serving static content (CSS, JavaScript, images)
* Cron -- for launching cron jobs
* Object manager, filesystem components (inheritors specific to Magento application)
* Caching, cache types
* Language packages, dictionaries
* DB connection configuration and pool
* Request dispatching, routing, front controller
* Services for view layer
* Application areas