The RAM is accessed using I/O ports. It can not be banked in like common RAM expansions do. So it's a real RAM disc, not an RAM expansion.
There was support for [[FutureOS ]] for a while(up to system 0.6). That support was abandoned later due to the very high price of the RAM disc (more than 1000 DM) corresponding to a very small number of units sold.
== I/O Ports ==
(Data taken from the FutureOS manual).
[[Category:FutureOS]]
[[Category:Hardware]]
[[Category:Peripherals]]