For example: play a sound or music, draw a character to screen, or accept your input from pressing buttons. The emulator acts as a go-between: it accepts the game's commands to the original hardware, translates it into something your current hardware can interpret, and back again.
In order to do this, they must still 'initialise' the fake hardware so that the Operating System/Program (in this case, the game you're playing) - can still access stuff like the buttons, speakers and the screen in order to make things happen. It is a term used to refer to the set of computer instructions that are built into the system which initialises the hardware when it's switched on.Īt a very basic level, emulators 'pretend' to be the system that they are emulating. BIOS is actually an acronym standing for Basic Input/ Output System.
