Question: what is the minimum system ram requirement for the latest versions of macos?
Answer: macOS Mojave requires at least 2 GB of RAM as well as 12.5 GB of available disk space to upgrade from OS X El Capitan, macOS Sierra, or macOS High Sierra, or 18.5 GB of disk space to upgrade from OS X Yosemite and earlier releases. Some features are not available on all compatible models.