The term 'DASH DIALS' is a combination of two words, 'DASH' and 'DIALS'. The first word, 'DASH', is an acronym for 'Data Acquisition System Hardware', which is a type of computer hardware used to collect data from various sources. The second word, 'DIALS', stands for 'Time-Averaged Current-Harmonic Spectra', which is a type of analysis used to measure the harmonic content of electrical signals. The combination of these two terms, 'DASH DIALS', refers to a type of system that combines the data acquisition capabilities of DASH with the harmonic analysis capabilities of DIALS. TACHS (5 letters) is an acronym for 'Time-Averaged Current-Harmonic Spectral Analysis', which is a type of analysis used to measure the harmonic content of electrical signals.