Tandy 6000 700-3036 XENIX Multi-User Operating System 3.1.2 Upgrade DRMX312D.DSK Clean install of XENIX 3.1.0 with full install of 260-6402 - Xenix Development System 3.0 and then upgrade to XENIX 3.1.2 DRMX312D.CFG DREM HD Configuration File for DRMX312D.DSK