I've an AMD K5 processor machine running at 100 mhz. for testing Transputer ISA cards when someone buys one, I also use the same machine to format and copy my Pascal compiler into a pair of 5 1/4" floppy disks. All using DOS.

> Transputer ISA cards when someone buys one

Your use of “when” is interesting - suggests it’s not that occasional. Wonder what people are doing with these nowadays.