The the term TPU a Google trademark? I'm understanding it to mean any ML focussed ASIC or supplemental SOC hardware.
Everyone else calls them NPU. Except for a few edgy companies going for LPU
TPU as best as I can see is always google. Either in cloud or their coral devices
I mean TPU's are generally the only off the shelf viable and reliable alternative to Nvidia GPU's for training and there are a lot of former Google staff at Apple that have experience with TPU's, so I wouldn't be surprised.