The short answer:You don't
The long answer:
RAM is handled very differently in Mac OS X than in previous versions of Mac OS. It is a *completely* different memory management system, in fact. Real memory, shared memory, and virtual memory are allocated, swapped around, and dumped dynamically by the system without any help from the user. That's why you don't have a memory section in the "show info" Finder window any more. You can watch these stats by using the terminal command "top" (which also shows CPU usage).
If you really want to learn more about the process, I suggest you read the <a href="http://arstechnica.com/reviews/01q4/macosx-10.1/macosx-10.1-6.html
" target="_blank">Memory Usage</a> section of John Siracusa's <a href="http://arstechnica.com/reviews/01q4/macosx-10.1/macosx-10.1.html
" target="_blank">Mac OS X 10.1 Review</a>.
[ 05-31-2002: Message edited by: starfleetX ]</p>