Description
Control firmware for a cash register, read from the machine’s chips before it was scrapped.
Provenance
Donated by the creator’s family in 2022. The chips were read several times in a programmer; one differing bit was resolved by majority. The image matches a checksum published by the original distributor.
Preservation
- Fixity (SHA-256)
44d79df3c0fab01456732aa59cf983d460cf07fdcc8cddb9b923dbf1d6cdf0ad- Last verified
- Sep 14, 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 reading rooms only, under the Lazarus orphan works policy.
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 Appliances, Northwind cash register controller, model FH-270 (1977). Lazarus Archive, LZ-32122.