These disks are 96tpi, double-sided. Two of the disks were originals: 1. TeleVideo P/N 125835-00 S/N 80-01066 TS-804 OASIS Version 5.6 Rev. A Copyright (C) 1983 by Phase One Systems Inc. All Rights Reserved Copyright 1984 TeleVideo Systems, Inc. 2. TeleVideo Systems, Inc. P/N 183098 01 Product TS 804 Program MP/MII V2.1 Version 1.0 COPR. 1981 DIGITAL RESEARCH All of the other disk images are for OASIS.