The BlueStacks App Player lets you run Android 4.0-supported apps on your PC or Mac.

You can run Windows and Linux on a Mac, alongside macOS, but you can’t run macOS on a computer built for Windows or Linux—at least not without investing a lot of time and effort.

Every program that you run on your computer consumes some amount of RAM. When you open too many heavy programs, your computer may run out of memory.