Apple Macintosh LC - Manual (Page 84)

The About window appears, displaying details about the Finder.
2. Click the close box to close the About window.
Consult your authorized Apple dealer if you want to expand the RAM in your
Macintosh.
Checking the RAM available for programs in MultiFinder
When you are using MultiFinder, the Finder's About window also displays a
graph depicting how much RAM is available for programs and how much memory
each open program is currently using.
Follow these steps to see how RAM is being used:
1. Choose About the Finder from the Apple menu.
The About window appears, displaying a bar graph that indicates memory
allocation.
2. Click the close box to close the About window.
Clearing system memory for efficient operation
If you are using MultiFinder and have opened and closed a number of programs,
your Macintosh memory can become fragmented so that you cannot open a large
program. If you suspect that this problem is the cause of memory shortages
when using MultiFinder, try quitting all the programs you have open, then
restarting the ones you need.
Changing the memory allocation for a program
When you start an application program, the program automatically tells your
system software how much RAM it needs. But on rare occasions (for example, if
you see frequent messages that there is not enough memory for the program),
the program may need a larger memory allocation. You allocate additional
memory by adjusting the program's memory size in the Info window.
The program must not be in use when you reallocate memory.
Follow these steps to change a program's memory allocation:
1. While on the desktop, select the program's icon.
2. Choose Get Info from the File menu.
The Info window appears.
3. Drag across the number in the small box at the bottom of the window to
select it.
4. Type a new number for the amount of memory you want to allocate.
5. Close the Info window to complete the allocation.
Tab key shortcut: You can also select the number in the small box at the
bottom of the window by pressing the Tab key.