The Propeller 2 processor includes features commonly requested by customers such as code protect, additional RAM and more I/O pins.
The Cube gets 64MB of additional RAM and 10MB of additional HD space for $500.
This file is seen by Ubuntu as additional RAM.
Many desktop PCs have the capacity for additional RAM.
It has additional RAM (Random Access Memory) and the ability to access more cartridge data at one time than the 2600.
Dell doesn't offer options for additional RAM.
System memory modules could be "piggy-backed" onto each other (another feature unique to the 1400), allowing the use of additional RAM.
Adding more RAM will make your programs run smoother, but up to a point any additional RAM has no effect.
Some DS homebrew also uses this additional RAM; however, addressing issues and speed make it less useful than the DS' built-in memory.
For large databases, additional RAM improves performance.