Congrats Samsung. Now get back to work and give me my 4.1.2 already

This post has been edited by ramz: Jan 14 2013, 06:56 PM

u can google this. in a nutshell, it keeps recent opened apps in RAM. they are in RAM, but the apps don't use cpu cycles so these apps don't affect performance or battery usage (unless they misbehave). these apps will stay in RAM until such time system detects low RAM. when in low RAM, system takes a snapshot of the app in RAM, saves in storage, and kills the app to release RAM for other new opened apps. when that killed app is opened again by user, system will again kill apps (if needed due to low RAM), followed by reinstating back that app from storage back to RAM. So although u see lot of apps in the "Running" tab in "Applications Manager" in settings, u need not worry about them too much (other than the fact there will be more housekeeping overheads everytime u open a new app). What u really need to worry are the apps in "Active applications" under task manager, coz these are the ones really hogging your RAM.