CPU
Central Processing Unit (CPU)
CPU stands for Central Processing Unit, and refers to the main computational processor in use on a given computer system The CPU's used in all Atari TOS Family were variations of the 680x0 family.
MC68000
The Atari ST series of computer uses the 16 bits Motorola 68000 CPU. Variant of the CPU can be found here.
MC68030
The Atari Falcon030 and TT030 computers uses the 32 bits Motorola 68030 CPU. Variant of the CPU can be found here.
MC68040
MC68060
Some hardware CPU accelerator uses this type of 32 bits CPU. Variant of the CPU can be found here.