ATARI 400/800 RPN Calculator Simulator

[Jurgen Keller]

I recently stumbled across an eBay auction offering a floppy disk containing an RPN calculator simulator for the ATARI 400/800. It was written by John Crane in 1982 and apparently was published as part of the ATARI Program Exchange (APX) program. I googled a bit and found the following resources on the Internet which I list here just for the sake of documenting the history of RPN calculators and for anybody that is interested:

• Program and manual: ATARIMANIA
• Podcast: ANTIC Interview 158 - John Crane, RPN Calculator Simulator
  

I have not yet listened to the Podcast nor tried the simulator, just thought it's maybe worth mentioning it here.