JPCSIM is a Computer Simulator primary created to teach how to install various operating system on a computer, by make use of several images, JPCSIM can make the simulation of an operating system, from bios to post, from installation to desktop and even simulates some computer program, but NEVER emulates it. You can use this app for learning purposes, or for joking purposes as it may makes anyone think you have installed an computer into your Smartphone. Before rating, remember, it is designed to simulate and not emulate, also we are updating the app regularly to add a lot of systems, tell your suggestion in a email or a review!