PS3 OS Question

Hey guys,
 
I always wondered where the OS(XMB) of the PS3 is stored. If the OS is stored in some chip, how are system updates adjusted? I mean, assuming if every system update brings new features, that means increased size of the OS and and more RAM used. Does the OS chip has an allocated memory determined for all future updates? How does all this work?
 
Thanks!

Internal flash memory
http://www.avforums.com/f...-xmb-where-stored.html

SOCOM 2 HD PLEASE :)

Rahim92


Hey guys,

I always wondered where the OS(XMB) of the PS3 is stored. If the OS is stored in some chip, how are system updates adjusted? I mean, assuming if every system update brings new features, that means increased size of the OS and and more RAM used. Does the OS chip has an allocated memory determined for all future updates? How does all this work?

Thanks!

The operating system in the console is stored on a reserved location on the hard disk most likely.  On booting up the CPU reads off of the ROM (which is persistent memory) for the address to the OS's location on the hard disk and loads the OS into RAM.  This way the OS can be updated and be of varying size, since its just stored on the hard drive.  To make sure that other games and such cannot accidentally overwrite the OS kernel maintains control of all hard disk writes.  


This is all conjecture on my part, I'm simply speaking from my experience from my OS systems class.  

It's on the HDD.  Certain OS-specific data is stored on a chip, but is only read access.