I’m stunned that this list overlooks the brilliant PowerBook Duo and its Duo Dock, which mechanically injected and ejected the Duo like a VHS tape. https://apple.fandom.com/wiki/Duo_Dock
In the mid-1990s, I could work most of the day on batteries with a super lightweight notebook. Allocate enough RAM Disk space to for a minimal Mac OS system and WriteNow for word processing. Only spin up the hard drive to save data.
Reflective LCD screens are magical in daylight.
Or a Macintosh floppy disk.
You still can! Except now the trash can turns into an "eject" icon.
But I've heard that on the original Mac and Lisa 1) there was also an eject menu item and a keyboard shortcut and 2) there was actually a somewhat sensible purpose to Apple's madness, specifically:
Early Macs (and Lisas?) kept a greyed-out icon of an ejected floppy on the screen so that you could drag and drop files onto an ejected disk (at which point it would ask you to insert the disk.) This made single-floppy systems without hard drives somewhat usable. To clean up ejected disk icons from your desktop, you could drag them to the trash (or possibly use another menu command). Dragging a mounted disk to the trash was simply a shortcut for the two steps.
At least Macs abandoned the Lisa feature where moving a file to a floppy actually moved the file and deleted it from your hard drive. Logical in terms of the "desktop" metaphor perhaps, but obviously something that led to confusion and data loss (or at least misplacement).