Adding memory to your computer

Your PowerBook computer comes with at least 4 MB of RAM. By adding memory upgrade cards you can increase your computer’s memory. You can find out how much memory your computer has by choosing About This Macintosh from the Finder’s Apple menu.

Apple provides memory upgrades through its authorized dealers. Memory upgrades are also available from other vendors; ask your dealer for more information.

Apple recommends that memory upgrades be installed by an authorized Apple dealer.

Your PowerBook computer also supports virtual memory, a feature that makes use of hard disk space to provide additional RAM.

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Apple 145 manual Adding memory to your computer