Is there an OS on it? Reason I ask is I was given a touchscreen monitor with CPU inside last week. I was told the HD was shot so I would have to replace it. Well, I bought a new HD but the problem is that I cannot get the HD to boot and I cannot boot from floppy, CD or USB

It's an older CPU but it does use a 2.5" laptop HD. I'm looking for an older OS like Win NT, 95, or 98. Is that possible for you to put on the HD? Once I get the HD to boot I can add a PCI USB card I bought. Until then, I'm a little stuck.
Also, the HD I bought was the same as the HD that was dead inside the CPU. It's only a 6G cause the MB can only handle 8G. It doesn't matter to me that the HD your selling is 60G, but will it work in the CPU?
Thanks again for the offer.