1. have iphone 4s alot of important photos, contacts, apps, etc., , cant lose data. i'm getting imac next month birthday. mac erase thats on phone, or can transfer data iphone? thanks!
that depends on normal workload. many, if not users, 4gb plenty. determine if can benefit more ram, launch activity monitor , click system memory tab @ bottom check page outs. page outs cumulative since last restart, best way check restart computer , track page outs under normal workload (the apps, browser pages , documents have open). if page outs significant (say 1gb or more) under normal use, may benefit more ram. if page outs 0 or low during normal use, won't see performance improvement adding ram.
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