It has more memory (192 kb instead of 128 kb) which can be expanded up to 448 kb. Th VRAM (video memory) has also been expanded to 144 kb because of the new graphic possibilities : 320 x 200 pixels with 262144 colors !
The FM 77 AV 40 is sold with two built-in 3.5" disk-drives (640 kb each).
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.