![]() ![]() ![]() ![]() Hopefully, you chose to install Mac OS X on a separate volume from Mac OS 9.2. You could install it on the same volume as the one on which you installed Mac OS 9.2, or you could choose a different volume. If you installed Mac OS X on a machine that already had a previous version of the OS on it, you had two fundamental choices as to where to install it. The good news is that if you have installed Mac OS X, you already have installed a Classic environment.įor help installing Mac OS 9.2 and Mac OS X, see Appendix A, "Installing and Maintaining Mac OS X," p. The least desirable configuration is to have only one partition on your machine (with both Mac OS X and Mac OS 9 installed on it). However, two partitions?one for Mac OS X and one for Mac OS 9?works very well. The ideal scenario is to have three partitions on your machine: one for Mac OS X, one for the Mac OS 9 environment you will use for running Classic, and another Mac OS 9 that you will use to run the machine under Mac OS 9 directly. Each instance of Mac OS 9.2 can be used to provide a different Classic environment. You can also have more than one volume containing Mac OS 9.2 on a single machine. When you installed Mac OS X, you should have also installed Mac OS 9.2, preferably on a different partition than Mac OS X is installed on (although they can be installed on the same partition). After these tasks are accomplished, you can run the environment to run Classic applications. Not yet, anyway.To be able to use the Classic environment (and thus Classic applications), you need to install and configure the Classic environment you want to use. Emulators like QEMU can emulate PowerPC Macs, but (at least as far as I am aware) there are no easy browser-based implementations that exist. Infinite Mac won't run later releases of classic Mac OS (including 8.5, 8.6, and 9) because those releases ran exclusively on PowerPC Macs, dropping support for the old Motorola 68000-based processors. Parparita used existing Basilisk II features to reduce CPU usage, only requiring full performance when "there was user input or a screen refresh was required." So when you emulate these old systems, they'll ramp one of your CPU cores to 100% whether you're actually using the emulator or not. Old operating systems and processors didn't really distinguish between active and idle processor states-your computer was either on or off. "Along with some old fashioned web optimizations, this makes the emulator show the Mac’s boot screen in a second and be fully booted in 3 seconds, even with a cold HTTP cache," Parparita wrote.ĬPU usage was another issue. To solve the download problem, Parparita compressed the disk image and broke it up into 256K chunks that are downloaded on demand rather than up front. Parparita details some of his work in this blog post.īeginning with a late 2017 browser-based port of the Basilisk II emulator, Parparita wanted to install old apps to more faithfully re-create the experience of using an old Mac, but he wanted to do it without requiring huge downloads or running as a separate program as the Macintosh.js project does. Instead, it's the creative solutions that developer Mihai Parparita has come up with to enable persistent storage, fast download speeds, reduced processor usage, and file transfers between the classic Mac and whatever host system you're running it on. What makes the project unique isn't necessarily that it's browser-based it has been possible to run old DOS, Windows, and Mac OS versions in browser windows for quite a while now. Further Reading My coworkers made me use Mac OS 9 for their (and your) amusement ![]()
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