Both boards have the same set of ROMs. Some of the ROMs on the first board are soldered in but all of the ROMs on the second board are socketed. The Proteus programmer was able to read the EPROMs, but the ROMs are a little more difficult. The program pin on the EPROM is a chip enable on the ROMs so it was necessary to make up an adapter socket for the ROMs to pull this pin high.
| Board | Type | Label | Socketed | Location | Address | Condition | Description | ||
| 2 | EPROM | Y | UD12 | 0x9000 | 36864 | -28672 | Word Processor | ||
| 2 | EPROM | Y | UD11 | 0xA000 | 40960 | -24576 | Toolkit / Extramon | ||
| 2 | ROM | 901465-23 | Y | UD10 | 0xB000 | 45056 | -20480 | Verified | Character ROM |
| 2 | ROM | 901465-20 | Y | UD9 | 0xC000 | 44152 | -16384 | Verified | Basic 4 |
| 2 | ROM | 901465-21 | Y | UD8 | 0xD000 | 53248 | -12288 | Verified | Basic 4 |
| 2 | EPROM | Unlabelled. | Y | UD7 | 0xE000 | 55344 | -8192 | Looks plausible but doesn’t exactly match any candidates | Probably an edit ROM of which there are many. |
| 2 | ROM | 901465-22 | Y | UD6 | 0xF000 | 61440 | -4096 | Verified | Kernal |
| 2 | ROM | 901447-10 | Y | Verified – file size is incorrect but data is good | 8 10 file size is incorrect but data is good | ||||
| 1 | ROM | Y | First 2k is the same as ROM 2 | Probably an edit ROM of which there are many. | |||||
| 1 | ROM | Y | Verified | Toolkit / Extramon | |||||
| 1 | ROM | Y | First 2k is the same as ROM 2 | Text Editor | |||||
| 1 | ROM | 901465-20 | N | Unknown | Basic 4 | ||||
| 1 | ROM | 901465-21 | N | Unknown | Basic 4 | ||||
| 1 | ROM | 901465-22 | N | Unknown | Kernel | ||||
| 1 | ROM | 901465-23 | N | Unknown | Basic 4 | ||||
| 1 | ROM | 901447-10 | N | First 2k is the same as ROM 2 | Character ROM |