HP 9831 Option ROMs - MAME (0287) software list


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NO SNAP

mass
Mass storage ROM for 9831
1977
Hewlett-Packard

NO SNAP

matrix
Matrix/plotter ROM for 9831
1977
Hewlett-Packard
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MAME: 0287 - Released: 2026-03-29T16:29:11 - Machines: 49860 - rom: 369890 - disk: 1398