Not as critical as when Mach first came out.
One of the complaints when it first came out was it needed a high end PC for the time, most of the secondhand ones , the Pll’s etc were not up to the job.
However as PC have improved Mach’s needs have remained steady with the result that even the lowest spec used machine is streets in front of what is needed.
We are buying ex-education Dell’s in, with a legal working copy of XP and the hologram c/w license number for less than you can buy a copy of XP and they have a standard parallel port and don’t rely on an add on card.
John S.