You can still run your old DOS programs right from macOS without having to power off your machine and boot up from your MS-DOS diskette by following these steps;
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
$ brew install dosbox
$ dosbox Downloads/Golden\ Axe/GOLD.EXE DOSBox version 0.74 Copyright 2002-2010 DOSBox Team, published under GNU GPL. --- CONFIG: Generating default configuration. Writing it to /Users/username/Library/Preferences//DOSBox 0.74 Preferences CONFIG:Loading primary settings from config file /Users/username/Library/Preferences//DOSBox 0.74 Preferences MIDI:Opened device:coreaudio
You can download old DOS programs from sites such as Abandonia
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