When skimming through my pending Mac OS X upgrades this morning I noticed one saying:

This update eliminates the noise made by the optical disk drive during system startup and wake from sleep on MacBook computers.

Wow. As long as I've been using a Mac, the sweep-sweep noise has been characteristical for a Mac startup sound, reminiscent of the floppy drive seek sound computers made when they still came with floppy drives (yes, dear children, I am that old).

I wonder what this was for in the first place. Maybe to find out reliably if there is a disc in the drive already? <crystal ball>Possibly, the operating system did not check again and just relied on the hardware status flag being set correctly on startup, and if it was wrong, evil things could happen?</crystal ball> And now, almost suddenly, the Mac engineers found out that it is unnecessary altogether? The wonders of Snow Leopard.

What comes next? Removing the gong on boot to avoid Mac-obsessed college kids from making fools of themselves during lectures? ;)

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