PC-9801
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The NEC PC-9801 (or the PC-98 for short) is a Japan microcomputer manufactured by NEC. It first appeared in 1982, and employed an 8086 CPU. It ran at a clock speed of 5 MHz, with two µPD7220 display controllers (one for text, the other for video graphics), and shipped with 128 KB of RAM, expandable to 640 KB. Its 8-color display had a maximum resolution of 640×400 pixels. Its successor, the PC-9801E, which appeared in 1983, employed an 8086-2 CPU, which could selectably run at a speed of either 5 or 8 MHz.
In the 1980s and early 1990's, NEC dominated the Japan domestic PC market with more than 60% of the PCs sold as PC9801 or PC8801. In 1990, IBM Japan introduced the DOS/V OS which enabled to display Japanese text on ordinary IBM PC/AT's VGA adapter. After that, the fall and decline of the PC98 began. The PC-9801's last successor was the Celeron-based PC-9821Ra43 (with a clockspeed 433MHz), which appeared in 2000.
FreeBSD/pc98 runs on PC-9801s equipped with an i386 or compatible.
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