[gator352]

Because ram in smartphones is exactly like ram in a PC. When the phone is on, start-up apps and the OS use ram to function. There is no difference.

1GB = 1024mb. 164mb is being used by the system. If you use Windows 7, download a gadget that shows cpu usage and ram. I have 8GB ram in my system and win7 and start up apps use 24% of that 8GB right off the bat at startup. It fluctuates higher and lower depending on usage. Smartphones do the same thing.