The Ultimate
PC Downgrade
The motherboard in this PC has a mixture of ISA slots, the black edge card connectors, and the more modern PCI slots, which are the white ones. I think that the older ISA slots have been phased out now, so this PC ought to have been an ideal specimen for the ultimate downgrade, just modern enough to have a decent amount of RAM and some semblance of a WIMP environment, and equally just ancient enough to have retained a nod to the old way of doing things.
Here I have added the Adaptec SCSI ISA card.