SCSI to folk today is well, how to put this nicely? Too hard for them. You'll need the SCSI controller, cables, and maybe the SCSI terminator.
How to setup SCSI is on the web so I will not duplicate that here.
If this was mine I'd look back in the Compaq to see if the controller, cables and terminator for use in another desktop to get the data out.
That's under 5GB of a HDD so I'll have some 8GB USB memory stick handy as I boot up a Linux OS to copy the files off in one last boot.
No Linux knowledge required. Read http://tips.oncomputers.info/archives2004/0401/2004-Jan-11.htm
hi, I don't know much about hard drives, I have an old hard drive out of a Compaq computer, what do I need to get the files off it