DOS 2.5F
DOS 2.5F (C) 1983 Atari
- Enhanced by L. J. Silver
- Extended version of DOS 2.0
- Orange DUP-menu
- Hex-Dec conversion
- Diskdrive RPM check
- Very similar to DOS 2.5F, 2.6 and 2.8F
System disk (ATR): Dos 2.5F
DOS 2.5F (C) 1983 Atari
System disk (ATR): Dos 2.5F
Afaik, the DOS versions 2.5F, 2.6, 2.8, etc. are all the same, they use the DOS.SYS of DOS 2.0s (39 sectors) and on top of it a DUP.SYS of 76 sectors, also known as BlackDOS…
The differences are indeed very tiny. Likely just some minor cosmetic changes.