Apple Macintosh PowerBook 150 - Manual (Page 14)

Step 3 Turn on the computer
m Press the Power On button located on the back of the computer to turn on
the computer. The Power On button is marked with this icon: P
You hear a tone when you turn on the computer. It takes the computer a
moment to start up.
When you see something like this on your screen, the computer is ready to
use:
Note: Your screen should look very similar to this picture, but it might not
look exactly the same.
P
Power On button
4 Chapter 1