TOS (
The Operating System also
Tramiel Operating System from
Jack Tramiel, owner of Atari Inc. at the time) is the
operating system of the
Atari ST range of computers. This range includes the 520 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.