HP was known for building generally good test equipment, including arbitrary waveform generators. Op is humorously referring to the fact that the test and measurement division was spun off first as Agilent, then Keysight (seriously?), and probably something else by tomorrow (marketing is furiously brainstorming new meaningless names. They only need to merge with Danaheer and rename themselves Flukeronix for the circle of life to be complete.