I love Macintosh computers, but they have a few little brain-dead things that they seem to insist on. Like the short cable for the mouse. Or the option-key.
I'll bet most Mac users at one point runs into this one: some instructions say "press the option key and..." and they look
all over the keyboard, finding no option key.
Well, the "option key" is the one helpfully labelled "alt". Like I said, brain-dead.
And it has an odd little symbol on it. I guess it's meant to symbolize a track diverging, thus giving "options" (?).

By the way, the "command" key is also usually not labeled well. It's the one with the apple. Verrrrry logical. The other strange symbol means "remarkable feature" when seen on road signs. Apple adopted it to mean "command" and forgot to tell the rest of the world.
Update: it seems Bron is right when he says his keyboard from a 24-inch iMac does it right:

Funny thing is that mine, here, is also from a 24-inch iMac:

I guess you just never knows what Apple does from day to day.
Or maybe it's a UK/Eu/US difference? Mine is a UK one.
Update: David Pogue tells me:
"It is indeed a US/UK thing."