dual boot OSX and 9.2, how to switch back to OSX?
I am brand new to Mac. I was given this iMac Power Mac 750 600Mhz with 256MB memory and a 80G hard drive. When I got it, it boots to OS X and I don't know what I did (maybe because I plugged in a USB hard drive) but it started to boot to OS 9.2 now, and I don't know how to switch back to OS X.
I remember, when I plugged in the USB flash key, it was running OS X, and it asked me to hold on the power button for several seconds to reboot, I followed that, and it boots to 9.2 ever since.
How do I make it boot to OSX?
Thanks!
iMac, Mac OS 9.2.x