Mini vMac emulates a Macintosh Plus, one of the earliest of Macintosh computers. It can run old Macintosh software that otherwise couldn't be used on recent machines. Mini vMac requires a ROM image file to run, and so can be legally used only by those who own a Macintosh Plus.What's new: Mini vMac now has a variation that emulates the Macintosh SE. There are also a few small improvements in the Macintosh Plus emulation.