Activity Monitor Question

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9 Jun 2005
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Looking at my system memory in AM and I'm using 950/1024 MB :eek:

iTunes is eating quite a bit.

Anyway my question is regarding the 4 coloured 'types' of memory.

'Free' = Empty Space I assume
'Active' = RAM actually in use
Now these two I have a pretty good idea of what they mean. Its the other 2 I'm curious about.

'Wired' = Being used by the OS maybe?
'Inactive' = ? not a clue. Empty space being held by other programs just in case?
 
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