ATARI: 400/800: BBSEXPRESS
bbs-express-850-ed-v1.0-side-1.atr () Serial #2248 - Version for the 850 Serial Interface - side 1 of 2.
bbs-express-850-ed-v1.0-side-2.atr () Serial #2248 - Version for the 850 Serial Interface - side 2 of 2.
bbs_express!_1030_xm301_and_850_versions_text.pdf () User Manual for BBS Express!