🚀 go-pugleaf

I am kind of new to the PC world so please be forgiving for my
tiring questions that I am sure have tired a lot of people by now...
 
1. What is the difference between expended memory and expanded memory?
   What is the benefit of having setup the memory as one over the other?
   And will software that, let's say, requires expanded memory see that
   I have only extended memory, and change that memory to extended?
 
2. Can a 286 handle expended memory? I ask this because, I once heard
   (I don't know where, perhaps I was dreaming) that since a 286 is
   a 16bit machine, one can not have expended memory instead only
   expanded memory. If this is not the case, what is the difference
   a 286 and 386 besides speed and some machine-codes?
 
3. I am getting a memory expansion board for the 286 because of Windows.
   But when I try to install the memory, the installation program
   gives me a lot of options that I am confused about, besides setting
   the memory to extended or expanded. It asks me whether I want
   smartdrive and/or fastdrive installed. If I install smartdrive
   will Windows take advantage of it?
   I also noticed that Windows comes with its own smartdrive. Which
   one should I use; can I use both?
 
Thanks in advance.
 
Sincerely,
Scott K. Stephen