The latest version of tn3270 X, 3.4.0, is supported on Mac OS X 10.3.9 Panther through macOS 10.14 Mojave.
Macintosh.js is a self-contained Electron app that bundles a classic Mac OS emulator preinstalled with Mac OS 8.1 along with a handful of classic applications from that era, including Adobe Photoshop 3.0.5, Adobe Illustrator 5.5, demos for Duke Nukem and Civilization 2, Oregon Trail, and more. Once you’ve done that, you can dig deeper and learn more commands and use your Mac’s command prompt for more complex, as well as some fun, tasks.
In order to use it, however, you’ll need to get to grips with its basic commands and functions. There are several advantages to using Terminal to accomplish some tasks - it’s usually quicker, for example. Terminal is a Mac command line interface. Why would you want to do that? Well, perhaps because you’re used to working on a command line in a Unix-based system and prefer to work that way. The Terminal app allows you to control your Mac using a command prompt.
