Apple Macintosh PowerBook 150 - Manual (Page 93)

Setting up a RAM disk
Using a RAM disk saves power because it avoids using the PowerBook’s hard
disk while you are running the PowerBook from its battery. Any files that are
copied to the RAM disk are saved in the System Folder on the hard disk when
you shut down your PowerBook. The next time you start up your PowerBook,
the files are copied back to the RAM disk automatically.
A RAM disk lets you keep frequently used application programs and files in
RAM. For maximum battery conservation, you can also use the RAM disk as
your startup disk.
To set up a RAM disk, you need 8 MB or more of RAM in your computer.
Follow these steps. (If you don’t plan to use the RAM disk as your startup
disk, skip steps 1 and 2.)
1 Select the System Folder on your hard disk and choose Duplicate from the File menu.
This creates a folder called “System Folder copy.”
2 Remove any extra extensions, fonts, and control panels you don’t use.
Do not delete the files called Finder, System, and System Enabler from the
System Folder copy or the file called Assistant Toolbox from the Extensions
folder in the System Folder copy.
3 Create a folder called RAM Disk Backup.
4 Put the System Folder copy (if you’ll be using the RAM disk as your startup disk), your
favorite application program or programs, and files you frequently use into the RAM Disk
Backup folder.
Keep additions to this folder to a minimum.
85 Customizing And Traveling With Your PowerBook