Turn on computer without sound?

Is there a way to, after turning it off with sound on, turn on my macbook without it playing the start up sound?
Too many times during class do I want to turn on my computer, but refrain from doing so because it will be a disturbance.

That is a good question about which I wonder as well : I have the same problem, only it's at 5:55 in the morning and I don't want to wake the whole house up. Turning it off with sound off fixes the problem, now if you left the sound on I don't know. On iMacs (at least the one my father uses, which is not the most recent one nor the one before that, but the one even before, the last one that had a half-sphere) if you plug earphones in before turning the computer on, the sound will play in them and won't be heard. Now I think that this doesn't work on MacBooks, but you'd better check, Toucan334. I'll ask around on other forums and post any answer here.

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