Need help installing MS-Dos, W95, and W98 on modern laptop. Can you help me?

I've been trying to install these OSs on my laptop, so I downloaded their isos and wrote them to a disc. When I put them in, the computer goes to a black screen with white text that has some information, and A:\> and expects me to type something in. I don't know what I'm supposed to type in. Furthermore, I read somewhere that the hard drive, or at least partitions of it, need to formatted as FAT32, which I suppose would make sense, since NTFS wasn't aroung back then. What do I need to do? P.S. What's volume, in terms of partitioning?