The point is that you can still do all of that stuff even on staticly allocated memory. The other limitation in a lot of these systems is the underlying virtua

The point is that you can still do all of that stuff even on staticly allocated memory. The other limitation in a lot of these systems is the underlying virtual memory system and some times there isn't one. Memory fragmentation issues are a huge problem when you have a couple kB to a few MB of physical RAM and a limited VM subsystem.