I have a 20" iMac running OS10.9.5 and am wondering if this could be used in any way as a monitor for a 21.5" iMac (Retina 4K 2017) running OS 10.15.7.
Any guidance will be appreciated or do I have to get a more modern computer?
Regards
Sapper
Any guidance will be appreciated or do I have to get a more modern computer?
Regards
Sapper