Operating System

ATARI 8-Bit Operating System#


Differences between Versions

Atari 800 ROM OS Source Listing

Atari Personal Computer System-Operating System-User's Manual-January 1982-CO16555 ; size: 67 MB, 280 pages

Atari 400-800 Technical Reference Notes-Operating System User's Manual-Operating System Source Listing and Hardware Manual ; size: 21.6 MB, 553 pages

FAST FLOATING POINT source code for the ATARI

Atari 800-XL-XE System Label Listing

Atari System Labels from OSS

Synapse Assembler Atari 800 OS Equates

Copy OS ROM to RAM

OS Vectors for Action!