How to install Android application on PC or Laptop

Android OS that we have known used by smartphone has many great application from many categories. The most popular Android application is HD games and chat application like Whats app messenger, WeChat, and the recent application that comes to Android is BBM for Android. But, in this post I won't talking about how to install or to use that app on your smartphone, but on your PC or Laptop. How to do that? let's start learning.