There are several free and open-source software options for emulating legacy Mac systems on contemporary computers. Intro: How do I pick what emulator to use?.(You can jump right to an app with this Table of Contents: I’ll start with the essential components to get any Mac emulation program running, give some recommendations for picking an emulator, then round it out with some installation instructions and tips for each one. So what really is the boundary between Basilisk II and SheepShaver? Why is there such a difference between MacOS 9.0.4 and 9.1? And what the hell is a ROM file anyway? That’s what I want to get into today. Most of the “default” or recommended pre-compiled Mac/Windows versions of emulators offered up to casual or first-time users don’t necessarily do every single feature that the emulator’s front page brags about. That’s partly because, as open source software, each of these programs is *potentially* capable of a hell of a lot – but might require a lot of futzing in configuration files and compiling of source code to actually unlock all those potentials (which, those of us just trying to load up Nanosaur for the first time in 15 years aren’t necessarily looking to mess with). In particular, while each Mac emulator has some pretty good information available to troubleshoot it (if you’ve got the time to find it), I’ve never found a really satisfying overview, that is, an explanation of why you might choose X program over Y. That’s also not something that to hold against them in the least, mind you – when you are a relatively tiny, all-volunteer group of programmers keeping the software going to maintain decades’ worth of content from a major computing company that’s notoriously litigious about intellectual property….some of the details are going to fall through the cracks, especially when you’re trying to cram them into a forum post, not specifically addressing the archival/information science community, etc. The tinkering enthusiast communities that come up with emulators for Mac systems, in particular, are not always the clearest about self-documentation (the free-level versions of PC-emulating enterprise software like VirtualBox or VMWare are, unsurprisingly, more self-describing). I elided much of the technical process of setting up a legacy operating system environment in an emulator, since my focus for that post was on general strategy and assessment – but there are aspects of the technical setup process that aren’t super clear from the Emaculation guides that I first started with. Last fall I wrote about the collaborative technical/scholarly process of making some ’90s multimedia CD-ROMs available for a Cinema Studies course on Interactive Cinema.

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