UTM is a cross-platform emulator that allows you to run macOS, Windows, or Linux. Here’s how to use it to run very old versions of Apple’s Mac operating system.
UTM emulator
UTM emulator
There are a variety of emulators and virtualization apps for macOS which allow you to run other operating systems on your Mac. The most well known of these are Oracle’s VirtualBox, Parallels Desktop, and Broadcom’s VMWare.
But there’s another great free OS emulator for macOS called UTM.