This is about the beginnings of ARTIS Software:
Two friends just finished high school, waiting for college to begin.
Hey, lets write a really cool painting software! :-)
And so we did.
Here it is: ARTIS 4.0 (english version)
Some ATARI Emulators for the Mac:
http://emulation.net/atarist/
(I did not get it to run on any of these, but maybe you are more clever)
An ATARI Emulator for the PC (Windows and Linux version available):
http://www.blimey.strayduck.com/download.htm
(I did get it to run on the Windows version)