Atari decidió lanzar uns serie de compatibles PC. El PC-1 fué el primer modelo.
Utilizó el ratón y la carcasa del Atari Mega ST4.
PC3, 8088 8Mhz based system with 640 KB ram, CGA graphics and 20MB hard drive,
PC4, 80286 16Mhz based system with a 60MB hard drive in which - optionally- a 3.5 1.44 Mb drive could be fitted (the front needed to be cut out and the metal casing sawed by the user). It also featured VGA graphics,
ABC, 80386sx 16Mhz model with a 40MB hard disk and vga graphics. This one came with a 3.5 floppy built in,
PC5, 20MHz 80386 PC featuring 60 MB hard disk and SVGA graphics with same 3.5 floppy disk option as with the PC4,
the N386 laptop.