| HP 2100 Series punched tape |  MAGNETIC TAPE... Model 20595-60003 | 197? | Hewlett-Packard |
| HP 9830 Series cass. | Magnetics Pac Vol 1 Model 09839-71000 | 197? | Hewlett-Packard |
| HP-83/85 disk | Make-Buy Decision Analysis Model 000-0033 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Malaria Eradication Program Model 41.9002 | 198? | Hewlett-Packard |
| HP-41C soft. | Mann-Whitney Statistic | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Map Scale Plotter Model 14.9501 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mapping Program Using Digitizer Model 62.9513 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mapping Program Model 62.9002 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | MASCAT - Master Catalog Program Model 72.9524 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | MASCOP Model 63.9006 | 198? | Hewlett-Packard |
| HP 2100 Series punched tape | MASIU SOURCE Model 05451-90455 | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Masked Three Dimensional Plot Program with Rotations Model 64.9006 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mass Copy Program Model 63.9504 | 198? | Hewlett-Packard |
| HP 9830 Series cass. | Mass Memory Training Cassette Model 09830-90020 | 197? | Hewlett-Packard |
| HP 9831 Option ROM | Mass Storage | 1977 | Hewlett-Packard |
| HP 9835A/B Option ROM | Mass Storage | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mass Storage Backup Routine Model 63.9503 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mass Storage Duplication Program Model 65.9526 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Mass Storage Reader for Point Plotter Utility Program Model 64.9511 | 198? | Hewlett-Packard |
| HP-85 Option ROM | Mass storage ROM Model 00085-15001 | 1979 | Hewlett-Packard |
| HP 9845B/C Option ROM | Mass Storage Model 09845-65516 | 198? | Hewlett-Packard |
| HP 9845A Option ROM | Mass Storage Model 09845-65531 | 198? | Hewlett-Packard |
| HP 9845 Series pack. | Master Grapher Model 53.9501 | 198? | Hewlett-Packard |
| HP-83/85 disk | Math Pac - French Model 00085-131 | 198? | Hewlett-Packard |
| HP-83/85 disk | Math Pac - German Model 00085-130 | 198? | Hewlett-Packard |
| HP-83/85 disk | Math Pac - Spanish Model 00085-133 | 198? | Hewlett-Packard |
| HP 9830 Series cass. | Math Pac Vol 1, General Model 09839-70000 | 197? | Hewlett-Packard |
| HP-83/85 disk | Math Pac Model 00085-13005 | 1980 | Hewlett-Packard |
| HP-86/87 disk | Math Pac Model 00087-13504 | 1982 | Hewlett-Packard |
| HP-83/85 disk | MATHBI - Mathematical Functions Model 900-0012 | 198? | Hewlett-Packard |
| HP-67 soft. | Matrix Algebra | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Matrix Contour Plots Model 64.9516 | 198? | Hewlett-Packard |
| HP 2100 Series punched tape | MATRIX INVERSIONS Model 22118-80001 | 197? | Hewlett-Packard |
| HP 9845 Series pack. | Matrix Move Assembly Routine Model 65.9527 | 198? | Hewlett-Packard |
| HP 9825 tape cart. | Matrix ROM for 9825 | 1976 | Hewlett-Packard |
| HP-85 Option ROM | Matrix ROM Model 00085-15004 | 1979 | Hewlett-Packard |
| HP-86/87 Option ROM | Matrix ROM Model 00087-15004 | 1982 | Hewlett-Packard |
| HP 9831 Option ROM | Matrix/Plotter | 1977 | Hewlett-Packard |
| HP 9845 Series pack. | Maximum Flow in a Capacitated Network (Ford & Fulkerson Technique) Model 12.9001 | 198? | Hewlett-Packard |
| HP-41C soft. | May-Grant Contact Lens of 1st Approximation | 197? | Hewlett-Packard |
