Mac OS 7 was a major change from the earlier System Software, introducing integrated multitasking, a revamped desktop, networking, and transitioning the name from 'Macintosh System Software' To 'MacOS'. It was followed by by MacOS 8.x.
Running Mac OS 7.x requires a Motorola 68000 based Macintosh, a supported model of Power PC based Macintosh (7.1 or later) or one of the following emulators:
Inspired by Dick Koch's award-winning TeXShop program for Mac OS X, it makes entry into the TeX world easier for those using desktop operating systems other than OS X. It provides an integrated, easy-to-use environment for users on other platforms particularly GNU/Linux and Windo. RC plane simulator Phoenix RC Mac OSX.
Global Nav Open Menu Global Nav Close Menu; Apple; Shopping Bag +.
Mini vMac - Runs MacOS 1.1-7.5.5, emulates a black and white Motorola 68K based Mac Plus
Basilisk II - Runs MacOS 7.x-8.1, emulates later color Motorola 68k based Macs.
SheepShaver - Runs MacOS 7.5.2-9.0.4, emulates a Power PC based Macintosh.
Screenshots
Release notes
An interim catchup release in the wake of Windows 95, bundling some extra desk accessories, more hardware support, and new APIs such as the modernized Open Transport.
Installation instructions
Note: Some of these CD images are actually hard disk volumes. You can mount those in an emulator, or some older CD burning programs know how to write them as a CD/ISO.
Smartpropoplus Mac Os Mojave
7.5.5 is the last supported version on Mac Plus, XL, Mac II, IIx, LC, IIcx, and SE/30, or anything with less than 68030 and 32-bit clean ROM.
You might be able to get the Devo 7 connected using a 22 in 1 simulator dongle. Not sure if that particular transmitter/dongle/combination will work on a Mac though.
Smartpropoplus Mac Os High Sierra
On Windows it might be possible to get the Devo 7 working as a joystick by connecting via a regular mono 3.5mm audio cable along with a software called Smartpropoplus.
Smartpropoplus Mac Os Versions
Here is an equivalent to that software on Mac: https://github.com/albhm/macPPM
I haven't tried it though (I'm not a Mac user myself). It will probably require some serious hacking skills to get it working.
There is some more general information in the user manual.
I think one of the best options is to get a multi protocol radio, such as one of the Jumper radios. I think a Jumper T8SG can be found for about 90 USD for example. That can be used to fly most real RC models, as well as function as a USB joystick.
You might be able to find a Radiomaster TX16S for about the same price too (although the chepest version is not multi protocol out of the box as far as I know).
Perhaps there are cheaper multi protocol alternatives too. I recommend researching for find the best alternative for you.
Otherwise, if you don't need multi protocol, I think the Devo 7E for example can be found for about 75 USD. And the Turnigy-TGY-i6S for about 60USD. I think it will not be easy to find an option much cheaper these days.
(Perhaps if you get a dummy transmitter, but that can't be used for actual RC control of course. This is about 40 USD, not sure if it will work on a Mac though).