Atari computers were produced from 1985 until 1994 by Atari Corp.
Models were created in a high-end workstation line, Atari MEGA ST 1, 2 and 4, MEGA STE, TT030, and a low-end home line, Atari 260ST, 520ST, 520STM, 520ST+, 520STF, 520STFM, 520STE, 1040STF, 1040STFM, 1040STE, 2080ST, Falcon 030.
All models used processors of the Motorola 68000 family with a 32-bit address space. The operating system was graphical and supported a single task at a time. The last versions supported preemptive multitasking.
The ST models had a palette of 512 colors, the later STE and TT models had 4096 colors. The screen resolution ranged from 64,000 to 1,2 Mio pixels. Sound could be played using a 3-voice programmable sound generator.
The most used graphics mode for animations was 320 x 200 pixels with 16 indexed colors.
The .SEQ (Cyber Paint) was a popular file format for animations. Games often used proprietary formats for their animations.