Atari TOS

Atari TOS
MultiTOS 1.0 with various programs provided by Atari in the background
DeveloperAtari Corporation
Working stateDiscontinued
Initial release20 November 1985; 39 years ago (1985-11-20)
Latest release4.04
Latest preview4.92
PlatformsMotorola 68000
Default
user interface
GEM
LicenseProprietary commercial software
Succeeded byMultiTOS

TOS (The Operating System) is the operating system of the Atari ST range of computers. This range includes the 520ST and 1040ST, their STF/M/FM and STE variants and the Mega ST/STE. Later, 32-bit machines (TT, Falcon030) were developed using a new version of TOS, called MultiTOS, which allowed multitasking. More recently, users have further developed TOS into FreeMiNT.