In this chapter, we took a quick look at the technology stack used in Magento. We discussed how Magento, being an open source product, takes extensive use of other open source projects and libraries such as MySQL, Apache, Nginx, Zend Framework, Symfony, jQuery, and so on. We then learned how these libraries are arranged into directories. Finally, we explored one of the existing core modules and briefly took a look at an example of a module's structure.
In the next chapter, we are going to tackle the environment setup so that we can get Magento installed and ready for development.