Manufacturer : NEC | System : PC-9801 Welcome to the NEC PC-9801 ROMs section of the ROM Database. Please scroll down for more sections and remember to share this page. You can also vote for your favourite system. NEC PC 9801 Roms Section. The PC-9801 is a Japanese 16-bit microcomputer manufactured by NEC from 1982, the first in the PC-9800 series of 16-bit and 32-bit personal computers. The platf