The LAMP stack consists of Linux, Apache, MySQL, and PHP, facilitating dynamic web hosting and app development.Linux serves as the foundational OS, while Apache handles web page serving and supports advanced features.MySQL is used for data storage and management, with MariaDB as a compatible alternative.PHP processes dynamic content, interacts with databases, and supports web app development.LAMP stack applications include CMS, e-commerce sites, web apps, and custom web solutions.Prerequisites for LAMP stack implementation in AWS include launching an Ubuntu EC2 instance and setting up security groups.Installation steps cover setting up Apache, MySQL, and PHP, creating virtual hosts, and enabling PHP on the website.Configuring Apache virtual hosts allows for multiple websites on a single server and proper site hosting.Enabling PHP involves adjusting the DirectoryIndex settings to prioritize index.php over index.html.Testing PHP functionality through creating and removing a phpinfo() script helps ensure proper server configuration.The LAMP stack's versatility offers developers a reliable environment for building and deploying web applications.