I've always been interested in the 128-bit Naomi hardware which Sega used around the time of the DreamCast. Cabinets were hooked together via fiber supposedly- this is how at Disney all the Daytona USA machines were connected together. There is a picture of two motherboards connected on this site: http://sega-naomi.com/hardware.htm and I wonder how different their protocol is from actual computers.
What is supposed about it? There are pictures right there.
That hardware is mostly off the shelf components (SH-4 cpu, PowerVR Gpu, arm based sound dsp), the thing is basically just an “actual computer.”
Daytona USA used the Sega Model 2 arcade hardware while Daytona 2 used the Model 3. None used the Naomi(a beefed up Dreamcast of sorts modified for arcade use).
Multiple machines could have been networked together I dont know how the older model boards did it but the Naomi used standard R45 network port(at least for Netboot) and it was standard TCP IP stuff.
