Brushless DC motor. How exactly is a synchronous motor "DC" if it needs an ESC/driver/VFD/whatchagonnacallit to do anything other than being stuck in one position and heating up?
That means that the driver providing electronic commutation is built into the motor so it may be treated as a DC motor.
"Sensorless" motor drives often have voltage and current sensing.
But they are distinguished from motor drives which require separate sensors.
DMA used to be defined as a peripheral accessing RAM without going through the CPU, but when basically all modern computers have the RAM directly attached to the CPU, it is now redefined as a peripheral accessing RAM without going through the CPU *cores*.
I cannot really complain about this. It is still direct memory access in the sense that no CPU processing is necessary beyond what was required before.
The external access goes through the integrated memory controller which may also invalidate cache lines. In the past when the memory controller was not integrated with the CPU, cache lines could still be invalidated by DMA. Did that make it any less DMA since the CPU was involved in some form?
Connectors have so many misnomers around them. "Dupont connectors" (breadboards) and "Molex connectors" (disk drives), for instance.
A recent discovery for me were "Amphenol connectors" (spoiler: almost never actually made by Amphenol).
It gets worse considering that Amphenol and Molex both produce Waldom connectors and Waldom no longer does but I still use my Waldom crimper. There used to be a much larger variety of these connectors. I remember we had problems with the Amphenol versions being out of specifications.
I hate the confusion between differential, difference, and instrumentation amplifier. Thank Texas Instruments for immortalizing the confusion in their application notes.
If you go back far enough, push-pull was synonymous with differential. This can be very confusing when reading very old documentation.
There are a bunch more of these that I have thankfully forgotten.