From what I understand, the original Apple Language Card was basically a RAM expansion card for the Apple II and Apple II+. This expansion increased the on-board RAM by 16K. Normally, if you needed this card, you would probably have the maximum of 48K on-bard. Therefore, adding this card would bump you up to 64K. Not only did the language card provide more RAM, I believe they also added more ROM such as Pascal compiler, etc.
As I understand it, the card allowed the user to switch between the normal high-ROM of 16K (top ROM of the 64K address space) to the 16K RAM the card added by using Apple's infamous "soft switches".
When the Apple IIe came out, it had 64K by default. Plus, many models shipped with another 64K expansion card increasing the RAM to 128K.
So my question is, if I have an Apple IIe with 128K of RAM, and I install one of these language cards, will I see any benefit at all? Meaning, will I have 144K of RAM?
Or, am I missing something? I can't remember but maybe the language card only works in slot 0 and the Apple IIe used slot 0 for its 64K expansion. Making both cards impossible to use at the same time.
Thanks for any information.