Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
Prototype is a JavaScript Framework that aims to ease development of web applications.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.