7 Manufacturer : NEC Corporation Year of Release : 1981 OS : N88-BASIC, N-BASIC (PC8001 MODE) CPU : µPD780c-1 (Z80A-compatible) @ 4 MHz RAM : 64 KB (up to 576 KB) / VRAM : 48 KB Sound : 3 FM channels + 3 SSG + 6 rhythms + 1 ADPCM