What information is encoded in Amiga's 22-digit barcodes?
For example: 0103791363642010121234
I couldn't find this information online, so I collected and compared some serial numbers. The first three digits appear to be the location of manufacture:
(However, I found some Post-Commodore Escom Amiga 1200's, all made in France, with country codes 260, 364, 464, and 564.)
The next two digits are the week number, followed by 2 digits for the year. For example, "3791" specifies September 1991. (This convention appears to have survived through the Escom era.)
The remaining digits are the product ID or model number followed by the serial number, but I don't know exactly how many digits were used for each or even if it stayed consistent through the end of Commodore.
The serial number, as far as I've figured it out is as follows:
AAA BB CC DDDDDD EE FF GGGGG
There are some other numbers similar to these. PCB labels start with 010 or 011 and seem to have the same week/year and other columns, but I haven't figured out what those represent in these numbers. Possibly the DDDDDD column also represents a product number here, which seems to match the ones on the case serial numbers.
Then we also have what I believe are service stickers starting with 051 and 052. Here, the product numbers seem to differ from the ones on the case or PCB stickers. Possibly, the DDDDDD column here represents the task being performed and the GGGGG column represents an employee number.
Last but not least, this is the result of guesswork and collection/analysis of around 60 serial numbers over the past three years. It's not official information.