The funny thing about the Apple ][ disk was that homing sequence itself. It was aligning the head to track 0 by SLAMMING it against a metal backstop. Primitive, but took very few opcodes to make it happen, especially since the apple disk format had no encoding in the tracks to tell the head where it was.
One of my first forays into 6502 assembly was copying that home routine off the card and changing the delay between pulses to the servo. You could actually make music with that metal backstop if you made the delay small enough.
Can't emulate that!
You might think the scraping sound the floppy drive makes is due to it being in an attic for 15 years. No. They always sounded like that.
The program that runs (from the bootable floppy in the drive) is an introduction to Apple computers. Note how the whole thing is designed to relax the user by showing the Apple's similarity to a typewriter.
I'm driving up to my parents' place in a few weeks so I can pick up my old Apple //e from their garage.
But the sound was important. Normal DOS directory track was number 11, so it sounded one way, while the cool stuff sounded differently - games, apps, etc.
It was awesome time, back then, before teh internet...