Hi @BarbaraGoldstein, Nicole is correct that I do all my work from a Macbook. If I want to run Sage 100 locally, I use VMWare Fusion. You can also run Windows on a Mac with a similar product from Oracle (https://www.oracle.com/virtualization/virtualbox/index.html).
However, the vast majority of my work is done on other people's servers, ASI's central network, or on Amazon Web Service servers. For those, I use Microsoft Remote Desktop, which is available for the Mac OS and works quite well. I can even run Remote Desktop from my iPad. There are software clients for Citrix on the Mac, as well. I don't find it a hardship at all to operate Sage 100 from my Macbook. I've been doing it for years.