this is what i learned on Research Machines
http://en.wikipedia.org/wiki/LINK_480Z 32k or less model .. i think after everything was loaded only had either 8k or 16k of usable memory space.
I actually wrote a multi-lingual word processor in that memory space that worked in English, Hindi and Gujarati, and theoretically would have worked with Chinese and Arabic as well as any other language...
But that was when I was young and my brain was sharp... Looking back I should have sold that software LOL the old dot matrix printing was mighty slow.
Did write some slick games on that thing as well... wish i still had the code