Mac vs. Macintosh vs. MacOSX

Should there be a unified term? Currently, there appears:

• "Mac" on
  • https://doc.zih.tu-dresden.de/quickstart/getting_started/#ssh-connection-command-line
  • Menu (Connecting via terminal (Linux, Mac, Windows))
• "Macintosh" on
  • https://doc.zih.tu-dresden.de/access/ssh_login/
• "MacOSX" on
  • https://doc.zih.tu-dresden.de/data_lifecycle/workspaces/#faq-and-troubleshooting
• "macOS" on
  • https://doc.zih.tu-dresden.de/software/mathematics/#installation-and-configuration-matlab-client-off-the-cluster