In Developer world , we often need to switch between multiple OS . It doesn't matter what may be the reason for switching , we need access to all major platforms like Linux , Mac and Windows . But for an obvious reason , we cannot afford to have machines equipped with mac, windows and Linux all the time . So , the second option to get all platforms without leaving your existing one is Running Virtual machines . But getting and ISO file of mac OS and setting up a VM is a tough task in itself . If you are an iOS developer or desire to be one , this path is not for you . You better