Apple Duo 270C manual Protecting the information on a disk, Scanning order for startup disks

Scanning order for startup disks

When you turn on your computer, it looks for a startup disk (a disk containing a System Folder) in the following sequence:

1.internal floppy disk drive (if any)

2.external floppy disk drive (if any)

3.disk (or RAM disk) selected in the Startup Disk control panel

4.internal hard disk

5.external hard disk (if there is more than one, it looks first at the hard disk with the highest SCSI ID number)

6.internal hard disk (the computer returns to this drive and waits another few seconds)

If the computer does not find a startup disk, it displays a blinking question mark in the middle of the screen.

To bypass the internal hard disk in the scanning sequence, press x-Option-Shift-Delete while the computer starts up.

SImportant: If you use an external hard disk, turn it on and wait a few seconds before you turn on your PowerBook, or the computer may not recognize the disk. S

Protecting the information on a disk

The information on a locked floppy disk or in a locked file can be opened or copied but cannot be changed.

Locking a floppy disk

nSlide the tab on the back side of the disk so that the square hole is open.

Use your thumbnail, a push pin, or a similar object to move the tab.

LockedUnlocked

To unlock the disk, slide the tab back so that it covers the square hole.

Chapter 7: Using Disks 109