Description
For sale is aset of four original Hewlett-Packard ROM modulesremoved from a working HP 9825A scientific desktop computer. These plug-in modules expand the capabilities of the 9825A and arebecoming very rare, especially as a complete set.
This lot includes:
✔ HP 98217A ROM
(Top module in photos)
Language/feature ROM for 9825A systems.
✔ HP 98215A ROM
(Second module in photos)
Adds extended features and functionality to the 9825A platform.
✔ HP 98211A ROM
(Third module)
Base firmware expansion ROM for 9825A.
✔ HP “OPERATING SYSTEM” ROM (08825-67905)
(Large module on the right in photos)
The main operating system ROM board used in the HP 9825A.
All modules areMade in USA, with clean labels and intact connectors.
📐 Condition
All modules are ingood vintage condition
Minor cosmetic wear consistent with age
Clean gold edge connectors with no visible corrosion
Untested due to lack of 9825A main unit
No cracks or structural damage
See photos — they show the exact modules you will receive.
🧩 Compatibility
These ROMs are designedexclusively for the HP 9825Aand will not fit other HP Desktop Calculator models (9820, 9830, 9835, etc.).
Perfect for:
Restoring a non-booting 9825A
Expanding system features
Collectors of early HP computing hardware
