Beneath the dust in parallel and serial

This is a parallel and serial card I took out of a computer over the weekend. It's no longer needed so I removed it.

About 10 years ago I replaced our desktop computers and realised that the new computers didn't have a parallel ports on them. Previously we'd used one USB connection on one computer and one parallel connection on the other computer to the printer so either computer could print without the other one being on. To get round this I bought this little card for a few quid so the computer could talk parallel while the other computer spoke USB. Suffice to say the printer died shortly after that and I bought a network laser printer so it became moot what connection we had.

As part of my upgrade and system life extension I'm working on, I upgraded the RAM on the computers and while the case was open removed this card. I now realise that the other computer of the pair while it doesn't have a parallel port on the case, it had a parallel port on the motherboard all along, so this card was never actually required in the first place...

Anyhow it made for an interesting monochrome close-up, via the Ilford Delta 100 filter. I blew a considerable layer of dust away and what you see in the blip is what I found beneath. I grant you it's a tenuous link, but it's all I've got and I'm sticking with it.