MIKSAM ROM 1982 Hewlett-Packard Assembler ROM 1982 Hewlett-Packard Matrix 1 ROM 1982 Hewlett-Packard Matrix 2 ROM 1982 Hewlett-Packard I/O ROM 1982 Hewlett-Packard Extended Mass Storage ROM 1984 Structured Software Systems Service ROM 1982 Hewlett-Packard HPIB service ROM 1982 Hewlett-Packard Advanced programming 1 ROM 1983 Hewlett-Packard Advanced programming 2 ROM 1983 Hewlett-Packard Printer/plotter ROM 1982 Hewlett-Packard