PPM-MCU- FLS Please help

[palladine]

From what i can gather, i ASSume that PPM And MCU are part of the content of a flash file. is this correct and can someone please explain to me what MCU & PPM stand for/Do

Thanks In Advance

[Manipulator]

mcu are operating system like windows for pc,
ppm are languages pack,ringtone,font,dictionary...

[palladine]

thanks bud