This is the Macintosh control panel, which is surprisingly compact and allows control over basically any functions of the desktop one would want to control.
It's worth noting that the Macintosh featured waveform-compatible audio hardware. The PC just had a beeper that couldn't be adjusted.

These next two screenshots aren't really related to System 1.1g, but they are important from the standpoint of how the 1984 Macintosh operated.

Programs were generally on their own bootable diskettes. Apple also used a file system trick to automatically associate file types with applications that presumably went along with this mentality, i.e. you didn't need to install anything and manually associate files with programs.
Shown here is the MacPaint application, one of the initial programs bundled with the Macintosh in 1984.

And here is MacWrite, the other bundled program.

So I lied about the Macintosh not having a command line interface. :-P
There is a switch on the Macintosh labeled "interrupt" (also called a Programmer switch), that when pressed inside the operating system brings up a machine code monitor that allows you to view the contents of locations in memory. Not something the average user would know how to do, so I am surprised it was allowed to remain in the final Macintosh design.

Pressing the interrupt switch while the system is either booting or waiting for a diskette causes a crash, which looks like this on the Macintosh.

Worth noting: the original Macintosh had no concept of shutting down; you simply ejected the diskette and turned the power off. This is pretty much the same behaviour as any other home computer of the time.