A Developer's Perspective on Apple's 12-inch PowerBook
Subject:   Sleeping beauty
Date:   2003-04-24 01:19:21
From:   anonymous2
In the middle of compiling a piece of code, I have to get off the bus, I closed the lid and the PowerBook went to sleep. Arrived home, plug in the power, open the lid and in 2 seconds, viola! the compiling went on as if nothing has happened!

You don't shutdown a PowerBook, you just close the lid.
You don't startup a PowerBook, you just open the lid.
Unless you are days off without a charger.