The machine I use for my DOS needs is an old PC from 1999, self-built: * A P3-450 with 384 MB RAM on an ABit BH6 motherboard * Voodoo Graphics * GeForce 3 Ti200 * SB AWE64 * 4x Panasonic IDE CD (ancient but still works) * A 5.25" disk drive as well as a normal 3.5" model (I had quite a few...