Early home PCs usually had a floppy disk and a simple hard drive controller. Later, IDE hard drives became the defacto standard. Of course, these days, you are more likely to find some version of SATA ...

I have a number of old, currently unused, destined-for-trash SCSI drives. I don't believe there is any data on them, I do think they were part of a RAID, though I don't know which level. I just want ...