How to install Android OS and Android Apps on PC ? If possible , android 4.0.3 .
closed as off topic by Simon Sheehan, random♦ Dec 25 '11 at 22:15
Questions on Super User are expected to relate to computer software or computer hardware within the scope defined in the FAQ. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about closed questions here.
There is Android-x86, which you can install as a full operating system on your computer, and acts as the Android OS, complete with apps and all. There are a lot of bugs, and it may not even work on your hardware.
Android provides an emulator that you can use, although I'm not sure how well you can load apps onto it, it's mostly for development. There's a lot of documentation on the same page I linked for the emulator.