Apple Lisa vs. NCR PC and GEM

The Apple Lisa, NCR PC4, and Digital Research GEM were all on the market in 1984. How do they compare?
In this video I do something simple: Create a small word processing document, and add an image. The GEM machine works, but it's clunky. The Lisa Office System works well; many of the principals it established are still with us today!

Видео Apple Lisa vs. NCR PC and GEM канала compu85