De Re Atari

Guide to the internals of the system from a user point of view

Technical Reference Notes

Operating System User's Manual

Technical Guide to Operating System

Operating System Source Listing

Assembler listing of the 400/800 operating system

Hardware Manual

Atari 400/800 hardware manual

Disk Utilities Source Listing

Source for DOS2.0 "DUP.SYS"

Atari Software Protection Techniques

Guide to software protection methods

Advanced Atari Protection Techniques

Guide to software protection methods

ACE, The Atari Cassette Enhancer

OS Extensions for Cassette units

Microport-XL

PBI Extension unit

DOS 2.5: 1050 Disk Drive

Atari owners manual for using a 1050 disk drive with a DOS 2.5

DOS 2.5: XF551 Disk Drive

Atari owners manual for using a XF551 disk drive with a DOS 2.5

XEP80 Interface

80-Column Video display controller and parallel printer port

850 Interface Module Operators Manual

RS232/Parallel printer interface inut

Atari 400/800 BASIC Reference Manual

How to use Atari Basic

Atari 400/800 Assembler Editor User's Manual

How to use Atari Assembler Editor Cartridge

Atari 400/800 BASIC Reference Manual

How to use Atari Basic

OSS Tiny C Referance Manuals

Optimised Systems Software Inc. Tiny C Programming Language

OSS OS/A+ Manuals

Optimised Systems Software Inc. DOS OS/A+

OSS EASMD Manuals

Optimised Systems Software Inc. EASMD (Assembler editor)

OSS BASIC A+ Manuals

Optimised Systems Software Inc. BASIC A+

ICD SpartaDOS v1.1 Manuals

Early version of SpartaDos, User Manual

Atari 410 Operators Manual

Atari Program recorder (Tape unit) Operator's Manual

Super/Archiver Manual/Documentation

Backup device for the atari 1050 disk drive.

U.S. Doubler Fitting Instructions

How to fit a US doubler enhancement in to a 1050. NB. this is still a commercially sold product please support XXXX.

Ultimon! Owners Manual

The On-board Monitor/Debugger

OSNXL Operating System

Replacement OS for XL/XE computers

Ramrod XL Fitting Instructions

Switch Board for up to 3 OS Chips

Omnimon XL User's Guide

Monitor & Debugger for XL/XE's

Omniview XL/XE/256 User's Guide

80 column OS & RamDisk Handlers (256K Upgrades)

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Last Update: 31 Dec 1999