NEC PC9801

Made in Japan by NEC in 1982
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Authorized clones:
NEC APC III. This North American clone was highly valued as a premium IBM compatible (a better IBM than IBM) with potential customers and owners apparently having been given no information concerning it's unique NEC-9801 gaming abilities in addition to IBM compatible gaming.

tech info

resolution: 640 x 480 / 320 x 200
memory: 256K ROM, 1-8M RAM, 192K VRAM
CPU: 8086, 80286, 80386, 80486, Celeron, and NEC V30
sound: 8bit on board + speech synthesizer

All NEC systems

NEC PC80011979
NEC PC88011981
NEC PC60011981
NEC PC98011982
PC Engine1987
PC Engine CD1988
NEC Supergrafx1989