Memory
Atari 520ST TOS ROM
192 KiB read-only TOS firmware.
- Manufacturer
- Atari
- Architecture
- Mask ROM
- Introduced
- 1985
- Word size
- 16 bit
- Type
- Mask ROM
- Record status
- provisional
Figures
provisional A figure marked provisional is recorded but not accepted: its evidence is unsettled. It may rely on one source, an unconfirmed announcement, or a digit read from a damaged scan. The reason appears under the figure. The catalog shows the figure but never uses it in a multiplier. How records are judged.
| Metric | Value | Evidence | Basis | Method | Source |
|---|---|---|---|---|---|
| Memory capacity memory provisional | 192 KiB | Reported | Vendor-rated | Design capacity Stated by the vendor Atari's service manual states this ROM capacity for the 520ST/1040ST system family. |