Tandy Radio Shack TRS-80 Model 4 - Operating Systems - [DSK] Tandy Radio Shack TRS-80 Model 4 - Operating Systems - [DSK] (TOSEC-v2025-01-15) TOSEC 2025-01-15 Aral - Ira - mictlantecuhtle contact@tosecdev.org TOSEC http://www.tosecdev.org/

6.2 Plus (1985)(Micro-Systems Software Inc) DOSPlus IV v1.0 (1983-09)(MicroSystems Software Inc) DOSPlus IV v1.0 (1984-01)(MicroSystems Software Inc)(Disk A) DOSPlus IV v1.0 (1984-01)(MicroSystems Software Inc)(Disk B) DOSPlus IV v1.0 (1984-01)(MicroSystems Software Inc)(Disk C) DOSPlus IV v1.0 (1984-02)(MicroSystems Software Inc)(Disk A) DOSPlus IV v1.0 (1984-02)(MicroSystems Software Inc)(Disk B) DOSPlus IV v1.0 (1984-02)(MicroSystems Software Inc)(Disk C) DOSPlus IV v1.0 (1984-02)(MicroSystems Software Inc)(Disk D) DOSPlus IV v1.0 (1984-02)(MicroSystems Software Inc)(Disk E) DOSPlus IV v1.0 (1985-01)(MicroSystems Software Inc)(Disk A) DOSPlus IV v1.0 (1985-01)(MicroSystems Software Inc)(Disk B) DosPlus IV v1.00 (1983)(Micro-Systems Software Inc)[Bare] DOSPlus Hard Disk Drivers (1983)(Micro-Systems Software Inc) Hard Disk Driver & Utilities for LDOS v6.3.1 (1991)(Misosys Inc) Hard Disk Operating System Initialization for TRSDOS v6.01.01 (1983)(Logical Systems Inc) Hard Disk Operating System Initialization for TRSDOS v6.2 (1984)(Tandy) Hard Disk Operating System Initialization v6.02.01 (1984)(Logical Systems Inc) Hard Disk Operating System v6.02 (1984)(Logical Systems Inc)(Disk A) Hard Disk Operating System v6.02 (1984)(Logical Systems Inc)(Disk C) LDOS Utility Disk (19xx)(Logical Systems Inc) LDOS v6.3.0 (19xx)(Logical Systems Inc)[a] LDOS v6.3.0-H (1986)(Logical Systems Inc)(Disk 1) LDOS v6.3.0-H (1986)(Logical Systems Inc)(Disk 2) LDOS v6.3.0-H (1986)(Logical Systems Inc.)[Hard Drive] LDOS v6.3.0-J (1986)(Logical Systems Inc) LDOS v6.3.0-L (1986)(Logical Systems Inc)[a2] LDOS v6.3.0-L (1986)(Logical Systems Inc)[a3] LDOS v6.3.0-L (1986)(Logical Systems Inc)[a4] LDOS v6.3.0-L (1986)(Logical Systems Inc)[a5] LDOS v6.3.0-L (1986)(Logical Systems Inc)[a] LDOS v6.3.0-L (1986)(Logical Systems Inc) LDOS v6.3.0-L+ (1986)(Logical Systems Inc) LDOS v6.3.1 (1991)(Misosys Inc) LDOS v6.3.1-1A (1990)(Misosys Inc) LDOS v6.3.1-1A (1990)(Misosys Inc)[Master] LDOS v6.3.1-1B (1990)(Logical Systems Inc)[Hard Drive] LDOS v6.3.1-1B (1990)(Misosys Inc) LDOS v6.3.1-1F (1990)(Logical Systems Inc)[Hard Drive] LDOS v6.3.1-1F (1990)(Misosys Inc)[F2][Master] LDOS v6.3.1-1F (1990)(Misosys Inc)[F3][Master] LDOS v6.3.1-1F (1990)(Misosys Inc)[FM][Master] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][15mbhd] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][ld631a] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][ls6-15] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][m4pl631] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][vrhard] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][vrhard4p] LDOS v6.3.1-1H (1990)(Logical Systems Inc)[Hard Drive][vrhdboot] LDOS v6.3.1-H (19xx)(Misosys Inc) LDOS v6.3.1-H (19xx)(Misosys Inc)[Master] Model 4D Hard Disk Operating System Initialization v6.02.01 (1984)(Tandy)(Disk 1)[Master] Model 4D Hard Disk Operating System Initialization v6.02.01 (1984)(Tandy)(Disk 2)[Master] Model 4D Hard Disk Operating System Initialization v6.02.01 (1984)(Tandy)(Disk 3)[Master] Model 4D Hard Disk Operating System Initialization v6.02.01 (1984)(Tandy)(Disk 4)[Master] Model 4D System and BASIC Interpreter v6.02.01 (1984)(Tandy)[Master] MultiDOS v1.7.1 (1985)(Cosmopolitan Electronics Corporation)[a] MultiDOS v1.7.1 (1985)(Cosmopolitan Electronics Corporation) MultiDOS v2.0.0 (1987)(Cosmopolitan Electronics Corporation)(Disk A) MultiDOS v2.0.0 (1987)(Cosmopolitan Electronics Corporation)(Disk B) MultiDOS v2.1.0 (1987)(Cosmopolitan Electronics Corporation) MultiDOS v2.1.0 (1987)(Cosmopolitan Electronics Corporation)[a] MultiDOS v2.1.0 (19xx)(Cosmopolitan Electronic Corp)[Double Sided] NEWDOS-80 v2.0 (19xx)(Apparat Inc)[4PD] NEWDOS-80 v2.0 (19xx)(Apparat Inc)[4PS] NewDOS-80 v2.0 (19xx)(Apparat Inc)[Double Sided] NewDOS-80 v2.0 (19xx)(Apparat Inc)[Single Sided] NewDOS-80 v2.0 (19xx)(Apparat Inc)[a] NEWDOS-80 v2.0 (19xx)(Apparat Inc)[Hacked for 4P] RapidDOS v1.3 (1984)(Rapidynamic Software Inc) RapidDOS v1.5 (1984)(Rapidynamic Software Inc) RapidDOS v2.0 (1984)(Rapidynamic Software Inc) RapidDOS v2.0 and Games (1984)(Rapidynamic Software Inc)(Disk 1 of 4) RapidDOS v2.0 and Games (1984)(Rapidynamic Software Inc)(Disk 2 of 4) RapidDOS v2.0 and Games (1984)(Rapidynamic Software Inc)(Disk 3 of 4) RapidDOS v2.0 and Games (1984)(Rapidynamic Software Inc)(Disk 4 of 4) TRSDOS 6.2 Utilities (1984)(Logical Systems Inc)[Master] TRSDOS 6.2 Utilities v1.00.00 (1984)(Logical Systems Inc.)[MASTER] TRSDOS v6.00.00 (1983)(Logical Systems Inc - Tandy)[Master] TRSDOS v6.01.00 (1982)(Logical Systems Inc - Tandy) TRSDOS v6.01.00 (1983)(Logical Systems Inc - Tandy)[Master] TRSDOS v6.01.00 (1983)(Logical Systems Inc - Tandy)[Master][601m1] TRSDOS v6.01.01 (1983)(Logical Systems Inc - Tandy)(Disk A) TRSDOS v6.01.01 (1983)(Logical Systems Inc - Tandy)(Disk B) TRSDOS v6.01.01 (1983)(Logical Systems Inc- Tandy)[Master] TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk A) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk B) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk C) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk D) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk E) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk G) TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk B)[Master] TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk C)[Master] TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk D)[Master] TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk E)[Master] TRSDOS v6.01.02 (1983)(Logical Systems Inc - Tandy)(Disk M)[Master] TRSDOS v6.02 (19xx)(Logical Systems Inc -Tandy)[Patched] TRSDOS v6.02-AN (1984)(Logical Systems Inc - Tandy)[Hard Drive] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 1 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 2 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 3 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 4 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 5 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 6 of 6)[Master] TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 01) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 02) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 03) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 04) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 05) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 06) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 07) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 08) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 09) TRSDOS v6.02.00-AN (1983)(Logical Systems Inc - Tandy)(Disk 10) TRSDOS v6.02.00-AN (1984)(Logical Systems Inc - Tandy)[HD] TRSDOS v6.02.00-AR (1984)(Logical Systems Inc -Tandy) TRSDOS v6.02.01 Upgrade (19xx)(Tandy) TRSDOS v6.02.01 Upgrade (19xx)(Tandy)[Master] TRSDOS v6.02.01 Upgrade (19xx)(Tandy)[Master][upg6026] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk A) TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk B) TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk C) TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk D) TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk E) TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk 1)[Hard Drive] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk 2)[Hard Drive] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)(Disk 4)[Hard Drive] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)[Master][M1] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)[Master][M2] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)[Master][M3] TRSDOS v6.02.01-AR (1984)(Logical Systems Inc - Tandy)[Master][R4]