pmoto

I was a bit confused about the whole ROM vs RAM thing as well. After much research it appears that, basically, there are 3 types of internal memory/storage on the Axim.

The X5 400 comes with 64 MB of RAM and 48 MB of ROM.

The ROM is reserved for operating system related "stuff". However, a portion of ROM is made available for us to use (this is what is referred to as Built-in Storage on the Axim. This area is not lost when performing a Hard Reset. Some use this to store critical files such as backups, etc.

The 64 MB of RAM is split between Program Memory and Storage Memory. Users have the ability to allocate the amount devoted to each of these.

Program Memory is "similar" to what PC users traditionally think of as RAM. That area that an application needs to startup and run.

Storage Memory is the remainder of the 64 MB. It is preserved as long as you do not remove both batteries. A hard reset will clear everything in this area.

As mentioned above we can allocate how much of the 64 MB goes toward Program Memory and how much toward Storage Memory. These changes are made under Start-Settings-System Tab-Memory. The slider bar shows your current allocation.