Atari DOS is the disk operating system used with the Atari 8-bit computers. Operating system extensions loaded into memory were required in order for an Atari computer to manage files stored on a disk drive .

Jun 15, 2019 · The first version of Atari DOS (1.0) was released in 1979 to coincide with the release of the Atari 400 and 800 and the 810 disk drive. Atari continued to release DOS versions through the XL and XE series of computers.

On the Atari, a complete Disk Operating System (DOS) consists of a complex, flexible combination of software components provided in the Atari OS on ROM with software components loaded into RAM from disk:

Atari DOS 3.x. This is a disk operating system and disk tools for Atari 400/800 computers, a series of 6502 CPU based 8-bit computer sold by Atari from 1979 to 1984.

DOS XL is a discontinued Disk Operating System (DOS) written by Paul Laughton, Mark Rose, Bill Wilkinson, and Mike Peters and published by Optimized Systems Software (OSS) for the Atari 8-bit computers.

DOS 2.5 supports both single density and the enhanced (dual) density mode on the Atari 1050 disk drive. If you format a disk in your 1050 drive with this DOS, you'll find that you now have 1010 sectors (129K) of available disk storage. This represents a …

Apr 20, 2021 · An SSDD 5.25" disk operating system in ImageDisk format for Atari 400/800 computers. An Atari 400/800 with a disk drive is required to run the software.

Back to Atari DOS. The DOS is a set of assembly language routines dedicated to running the disk drive. They load from disk any time the Atari is turned on with a disk turned on and connected. They are physically located in a file named DOS.SYS on the diskette. These routines are absolutely necessary to run the disk drive.

The Disk Operating System, short DOS, is a file management system for the Atari. It's main function is the management of storage such as floppy disk or harddisks. It contains the necessary driver functions for the computer to communicate with the disk-drives or other peripheral devices.