Apache is a free and open-source cross-platform web server software.
Lightbox is small javascript library used to overlay images on top of the current page.
OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.
Prototype is a JavaScript Framework that aims to ease development of web applications.
Unix is a family of multitasking, multiuser computer operating systems.