Getting an old (2002) 700 MHz iMac G4 with just 512 MB of memory up and running reminded me of what a nice – and still useful – operating system Mac OS X 10.4 Tiger is, especially on that old Apple PowerPC hardware.If you don't know the admin password, drag Chrome to a place on your computer where you can make edits, like your desktop. In the sidebar, to the right of Google Chrome, click Eject. ..