!!!OSS DOS XL

OSS DOS XL is a Disk Operating System (DOS) written by Paul Laughton, Mark Rose, Bill Wilkinson and Mike Peters and produced by Optimized Systems Software (OSS) for Atari 8-bit microcomputers. It was designed to be compatible with Atari DOS which came shipped with Atari's disk-drives.

DOS XL from OSS is the sucessor of OS/A+ DOS. This command line DOS was delivered together with the Indus GT Drive and many OSS Language Products.

!!Image
[{Image src='DOS_XL_Cover.jpg' width=263 height=377 }]
OSS DOS XL manual cover

!!Manuals
* [OSS DOS XL 2.20 with OCR and navigation|DOS_XL_2_20_OSS-OCR.pdf] ; size: 2.2 MB ; OCR ; navigation menu ; thanks to Allan Bushman for scanning in that incredible good quality. :-)
* [OSS DOS XL 2.30 and Bug/65 2.0 manual-printer optimized|http://data.atariwiki.org/DOC/OSS_DOS_XL_2.30_and_Bug-65_2.0-Manual-Print.pdf] ; original OSS DOS XL version 2.30 from 12/1983; User's Guide and Reference Manual; printer optimized ; size: 88.2 MB ; mega-thanks to Allan Bushman and Mr.Fish from AtariAge for providing us with that incredible good quality! We owe you very much!
* [OSS DOS XL 2.30 and Bug/65 2.0 manual-screen optimized|http://data.atariwiki.org/DOC/OSS_DOS_XL_2.30_and_Bug-65_2.0-Manual-Screen.pdf] ; original OSS DOS XL version 2.30 from 12/1983; User's Guide and Reference Manual; screen optimized ; size: 12.7 MB; mega-thanks to Allan Bushman and Mr.Fish from AtariAge for providing us with that incredible good quality! We owe you very much!
* [OSS DOS XL Handbuch (German)|dosxldt.pdf] ; German PDF-version, size: 7.5 MB
* [OSS DOS XL Handbuch (German)|dosxldt.djvu] ; German DJVU-version, size: 2.3 MB

!!ATR-Images
* [DOS XL v2.30p (1983)(OSS)(US)(Side A)(Double Density).atr] ; Original Masterdisk from OSS with double density ; many thanks to the preservation project for providing us with reliable software!
* [DOS XL v2.30p (1983)(OSS)(US)(Side B)(Single Density).atr] ; Original Masterdisk from OSS with single density ; many thanks to the preservation project for providing us with reliable software!
* [OSS DOS XL 2.30p Masterdisk SD.atr] ; Masterdisk for SD diskettes; usable for everything, but without further options, please see the manual below ; Indus GT files are included ; CONFIG.BAS, GTRPM.COM, GTSYNC.COM, SMALL.HLP, HELP.POK and a different STARTUP.EXC are included
* [OSS DOS XL 2.30p Masterdisk DD.atr] ; same as above for DD diskettes
[{Image src='p.jpg' width=559 height=45 }]
OSS DOS XL 2.30p \\
* [OSS DOS XL 2.30p Masterdisk SD (XL-XE) OSS carts only.atr] ; Masterdisk for SD diskettes; usable for XL- and XE-machines with OSS Supercarts only, takes advantage of the special carts while using less ram and offering further options, please see the manual below
* [OSS DOS XL 2.30p Masterdisk DD (XL-XE) OSS carts only.atr] ; same as above for DD diskettes
[{Image src='C.jpg' width=561 height=37 }]
OSS DOS XL 2.30C \\
* [OSS DOS XL 2.30p Masterdisk SD (XL-XE) non OSS carts.atr] ; Masterdisk for SD diskettes; usable for XL- and XE-machines with NON-OSS Supercarts only, takes advantage of further options, but uses more ram, please see the manual below
* [OSS DOS XL 2.30p Masterdisk DD (XL-XE) non OSS carts.atr] ; same as above for DD diskettes
[{Image src='X.jpg' width=568 height=46 }]
OSS DOS XL 2.30X \\
* [OSS DOS XL 2.30p SD.atr] ; SD format ; plain version, just DOS XL
* [OSS DOS XL 2.30p ED.atr] ; ED format ; plain version, just DOS XL
* [OSS DOS XL 2.30p DD.atr] ; DD format ; plain version, just DOS XL
* [OSS DOS XL 2.30p Color.atr] ; SD format ; plain version, just DOS with color option adaptable to the user's wishes

!!Patches:
* [OSS DOS XL 2.30 patch|DOS XL 2.30 patch] ; patch from version 2.30 to the latest 2.30p version; already done in the above atr-images
* [BASIC on-off from DOS XL commandline]

!!References:
* [OSS DOS XL Article in Wikipedia|http://en.wikipedia.org/wiki/DOS_XL]