> Extensions could easily bring down the entire system because there was no memory protection. Yes, they were quite unstable. I didn't say that they were stab

> Extensions could easily bring down the entire system because there was no memory protection. Yes, they were quite unstable. I didn't say that they were stable; I said that they were easy-to-understand and easy-to-disable, which they were: each extension had a distinct icon displayed at system boot; disabling one was as easy as dragging it to another folder; disabling all was a matter of, IIRC, holding down Command as you booted. > Windows preferred large windows that contained the entire app UI, and users typically maximized them. As a Mac user at the time, I much preferred the multi-window mode: it meant that I could customise my desktop as I liked. The Windows single-window mode was terrible, as it meant that I couldn't layer windows properly. > You saved a JPEG file from Photoshop, and it forever insisted on launching the full Photoshop when you double-clicked on it, instead of your preferred lightweight image viewer. We considered that a plus at the time: it meant that different files of the same type could be opened up by different apps by default. One could always, IIRC, Save As if one wanted to change the file type — or use ResEdit. > Windows NT 4 and its next version Windows 2000 were just heads and shoulders above MacOS 8 and 9 in terms of performance, stability and usability. Stability, probably. Performance, maybe. But usability? Never! That was back when Apple cared about UX.