I got a very old computer, and after dissasembling it I found this card:
Now, I have no idea what this is. Could anyone shed some light?
It has one 26 pin black connector and a sticker next to it saying "Index-Scan-In"


Now, I have no idea what this is. Could anyone shed some light?

It has one 26 pin black connector and a sticker next to it saying "Index-Scan-In"