Follow these steps to start up the tour disk. (If your computer has never been switched on, start with step 1; if someone has used the computer before and has removed the yellow plastic disks from the disk drives, skip to step 4.)
1. Switch on the computer.
To switch on the computer, reach around the left side of the computer and find the power switch on the left side of the back panel. Press the top half of the switch to turn the computer on. You'll hear a beep, and a yellow plastic disk will be ejected from each 3.5-inch disk drive connected to the computer.
Figure 2-1 Switching on the Apple IIGS
Section 1: Using the tour disk