APEX

Hi,
I just have a question regarding some of the item types Display as properties that I couldn't find in any of the documentation. Apologies if it is there and I have missed it.
I'm just trying to understand the differences between some of the display properties.
For example, if I choose an item to display but not be updatable, I can have it display as either:
- "Text Field (Disabled, saves state)"
- "Text Field (Disabled, does not save state)"

If an item is being displayed only in this instance and can't be updated by the end user, what is the difference between these display types? Can anyone give me an example of the type of situation where each of the above options might best apply?
Thanks,
Jon.