Description
Control firmware for a cash register, read from the machine’s chips before it was scrapped.
Provenance
Sent to Lazarus by post, with a note asking whether anything could be saved. The card had sat unpowered for years; it was read at low voltage, several times. All files were recovered; 43 damaged sectors were rebuilt from redundant data.
Preservation
- Fixity (SHA-256)
d2e54e7e845565ba057c5ce4d46adc82ee8f880da476f6837ce1ca78422d1a46- Last verified
- Oct 12, 2026, by Vigil
- Emulation profile
- LZE-EMBED-2 · lz-mcu core
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms.
In the reading room it runs in emulation under profile LZE-EMBED-2, from a read-only copy of the recovered image, as it would have on an embedded controller.
Cite as: Northwind Instruments, Northwind cash register controller, model PL-580 (1993). Lazarus Archive, LZ-11633.