| Entry | |
|---|---|
| 0 | Keyboard |
| 1 | Serial input |
| 2 | Serial output |
| 3 | Printer |
| 4 | Sound channel 0 |
| 5 | Sound channel 1 |
| 6 | Sound channel 2 |
| 7 | Sound channel 3 |
| 8 | Speech |
| 9 | Mouse |
This is the list of possible buffers.
The sound buffers (4 – 7) have no meaning for RISC OS, and can be safely ignored.