Filter
Top Products
127
Appendix A
Installing System Software
System software is the set of programs and other files that your computer uses
to start itself up, keep track of your files, and run the application programs
you use. When you turn on your computer, it looks for a disk that contains the
system software. System software is always in a folder called the System
Folder.
Any disk that contains a correct version of system software is a startup disk.
The startup disk is usually the hard disk that’s inside your computer, though
another hard disk or a floppy disk can also be a startup disk.
If your computer cannot find a startup disk, it displays this icon in the middle
of the screen:
If you see that icon, you may need to install or reinstall system software on
your computer’s internal hard disk. You can also attach your computer to an
external hard disk that contains the system software.
If your hard disk already has system software on it and you see that icon: Your
hard disk or system software may be damaged, or there may be problems with
SCSI devices attached to your computer. (See Chapter 9 for more information
on SCSI devices.) You may need to reinstall the system software. See the
section on reinstalling system software later in this appendix for instructions.
Refer to this chapter when you
need to install or reinstall the
system software on your
PowerBook Duo.