the minimum requirements to run the mount seem to be rather low.
I'm currently setting up a very low-end micro-PC that I plan to keep permanently installed at the mount rather then connecting my laptop each time.
I've bought an Orbsmart mini PC:
updated it to win10 and installed all the software that I need: autoslew, Sequence, MaximDL, PinPoint, The Sky 6, RoboFocus, Ascom, CCD Inspector, CCD Commander, Teamviewer, USB focus, QSC-focus and probably something else that I've forgotten.
A first test to remotely control the mount was successfull and I hope to be able to provide more experiences soon.
However, if you're planning to also use the PC for image processing or controlling e.g. a planetary cam like the Zwo 174, then I would recommend to aim for an i7 with 8 Gig of Ram and a bigger SSD. As you need several programms running in parallel to control the DDM60 and your camera, I would recommend to get a screen with at least full hd display to be able to arrange all relevant windows in a convenient way.