NAND vs SDCARD (where is my memory used at?)

[aronlib]

Originally Posted by m4f1050

So when we install ANDROID in NAND (or WM ROM in present time) we install in the ROM section and does the OS use part of the ROM (is ROM what we call NAND???) as "hard drive" and store the installed apps or does it store it in RAM? But somehow this RAM doesn't get wiped out when there is a reboot, power off?

Let's split my question....

Is NAND ROM or RAM?

And if RAM is the memory and you load the OS from RAM to RAM, the file system is on RAM but it's not wiped out, that means if we install ANDROID to NAND (or RAM?) we will have less memory for the OS correct?

Where are installed apps stored at?

In comparison, a computer has "memory" and "harddrive"... Is "memory" RAM, "harddrive" ROM or vice versa?

I thought I had this figured out, but not quite. I understand the PC quite well (im a computer engineer and mcpd) but these devices are confusing to me still... In a PC you have what we call harddrive where OS and apps get installed, when you use the PC the os loads into what we call memory.

Nand is ROM. Now while essentially ROM is "read only memory" we have the ability to write an new OS on to it.

Ram in a phone is technically the same thing as ram in a PC, it is used for multitasking and have multiple apps open at the same time.

Apps are installed on a partition of the internal memory that is not, Rom.

So basicly we have three parts. Internal memory that's partitioned in 2, one part being ROM "read only memory" that we have the ability to write on to, only when flashing an OS and the other being where we install apps to. and Ram.