er located in the head of the game. The Operating System controlling the PC is called XINA (which stands f... nguage Environment} where APPLE was the operating system used for WPC). XINA is unique in it's command str... ayer on top of PC-XINU, a multithreaded operating system originally created by Douglas Comer and documente... hrisc/xinu.html) PC-XINU won over other operating systems for a few reasons. For example, making Linux int