Favorite old Japanese computer of yours

I'm split, myself. x68K is an earlier system and has a 68K processor allowing for pretty much direct arcade ports (or for x68K assembly gurus to easily port their stuff), and it got a lot of them.

FM Towns, on the other hand, has a much faster series of processors (386/586, MHz-wise) and can do more. The UX-20 is one of the best looking all-in-one PCs around, somewhat like a Mac in that regard. Plus instant win for ports of Raiden and Splatterhouse.

Other series:

NEC PC-series went on for a long, long time; from the early 80s at least until around 1994 or so. NEC's insistence on making new machines non-compatible with their others helped fragment the Japanese computing market and let DOS-V in...but when these systems were king they got pretty much every game there was (especially in the early days).

The MSX series - pretty good system right here, but I've always felt that you can usually exchange a Famicom for it (exceptions: Many Konami games...nevermind Contra, everybody's short and the game looks plain odd). Still, I've picked up a few games for this system.

In the early 1980s (1983 for PC-9801) NEC's PC-XXXX series computers started becoming very popular. The naming scheme makes no sense at all - the 8001 was from 1979, the 6601 from 1985, and the 9801 is from 1983. Basically a ton of sub-series.

Somewhere along the line "PC-98" became popular and NEC stuck with that. They even created two versions of a plugin card that lets you play PC-FX games (sadly no PC-Engine games; for THAT you need a SHARP made X1 Twin or one of the millions of other variants NEC made), one for DOS-V machines, and one for the PC-98 series (which is the card I own - new too!)

#5 needs to turn off Sage, please.