Apple ADB / Apple IIgs
The Apple Desktop Bus or "ADB" was in fact introduced on the Apple IIGS. Eric few people know this, the IIGS was a real pacesetter in the A2 world with its 16-bit processor. the 65C816 was a closer to the Motorola processor used in the Macs of the time than the 6502 based chips that the Apple II had been using. The processor actually emulated the "Apple II" mode and ran at 1 mhz like a standard Apple II. If one was lucky enough to have programs specially designed for the GS, man what a difference. The processor was a 2.8mhz and the display was a true RGB setup with decent resolution. The GS in itself stood for "graphics and sound" and if I recall it used an Ensoniq wavetable which was pretty amazing. I think it was meant to compete with the Amiga and like systems of the time, which was 1986. Apple's product placement was strange on this one, because it wasn't a Mac, but at the time of introduction, was Apple's highest end COLOR computer. The Mac at that time of introduction was the Macintosh Plus, with was a 9" B&W model. The Mac II, which was the 1st modular mac (separate CPU and monitor) didn't come out until mid 87 and even then was MUCH more expensive than the GS.
We never had IIgs's in school, we have the older IIe's with the green screens. In 94 we started getting Windows 3.1 PC's and the beginning of internet and that was that. The Apple II's became relegated to the corners of the classroom and I started buying disks at RadioShack and making copies of games for myself. My 1st "real" computer was an Apple IIc for $50 in 1994 complete with an Apple ImageWriter II printer (beige not grey and not marked 1st gen).
Eric we should chat more

I love old Apple stuff. I've got the following systems: Mac Plus, SE/30 (1st Mac), Classic, IIci, IIsi, IIcx, Q630, P631CD, PM6100, 1st Gen iMac 233, iMac DV SE 400 (graphite), iBook G4, probably much more in storage. I also have a lot of Apple II stuff including cards and printers including the short-lived Apple Scribe color thermal wax printer.
Also my screen name is named after my favorite Mac, the Macintosh IIsi. I had a 1991 Mac IIsi that I fell in love with years ago and I kept the name. I think sometimes people wonder what the hell my SN means. It's old from the AOL days of 1996. I think Macboy may mean something else, but it's an Apple reference with me.
-Tim