Clear the concept of LAMP server and its interfaces

What are LAMP stands for? Where is LAMP And WAMP different? What configuration is needed to install LAMP? Is there IIS needs to install LAMP? Where is MySQL and PostgreSQL different? Can I install multiple web and database servers by using LAMP? What is Linux Virtual Server (LVS) and why do we use this? What is the role of Mysql in LAMP server? What is the core functionality of Apache? Which browser is necessary to set up LAMP server ? Thank You
