Kanji ROM board

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Kanji ROM board (漢字ROMボード) is a type of expansion board used in 8-bit and 16-bit computers and printers, including many of NEC's Home Computers. Due to the hardware limitations of these home computers, display of kanji characters needed extra components, usually in the form of two expansion boards, with the first containing the 2000 most common Kanji characters for general use, while the second contained more obscure kanji. These boards usually also contained extra characters, examples include the PC-9801-10 which allowed 63 user-defined characters.

List of Kanji ROM boards

NEC's PC-8000, PC-8800 and the early PC-9800 series all had official or third party kanji ROM boards made over the years.

This list is incomplete. The following list has been marked as incomplete. If you can, please complete it.

PC-8000

While no official kanji ROM board was released for the PC-8001, I.C released a third party accessory called the JWP-8200, following it up with an upgraded version called the JWP-8200 E, which contained a Kanji ROM board for word processing and office work.

As for the PC-8001 mkII, it recieved an offical kanji ROM board in the form of the PC-8001 mkII-01

PC-8800

Same with the PC-8001 mkII, NEC released an offical kanji ROM board in the form of the PC-8801-01, which was followed by a revised version called the PC-8801-01K

PC-9800

Many Kanji ROM boards were released for the PC-9800 series

Model Number	Type	Notes	Compatible Models
PC-9801-01	JIS level 1	2965 Kanji characters + 885 non-kanji	PC-9801
PC-9801-10	JIS level 1	2965 Kanji characters + 885 non-kanji + 63 user-defined characters	PC-9801/E
PC-9801-12/K	JIS level 2	3384 characters	PC-9801/E/F/M
PC-9801-18	Extra Kanji	338 characters from Shift JIS	PC-9801/E/F/M
PC-9801-28	Extra Kanji	338 characters from Shift JIS	PC-9801U/VM/VX...
PC-98XA-04	Extra Kanji	338 characters from Shift JIS	PC-98XA model 1/2/3