What kind of a CPU is this?

[Mguy]

Obviously a microwave oven. The thing on the left is the timer. Attached to it is the bell that makes that "ding" sound when the timer hits zero.

Yeah, sharp eye. I thought that was it in a tower form but there is more depth in the picture pa pala. Yep, a microwave oven. And I would think an old model at that.