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I remember DAT tapes back in the day. One of those could store 24GB or so, quite a marvel at the time.
We have those rotary recorders at work all over the place; although I'm too young to have actually seen them in use.Nowadays we've got a bunch of these Flukes: https://us.flukecal.com/products/data-acquisition-and-test-equipment/data-acquisition/2680-series-data-acquisition-systems?quicktabs_product_details=0120 channels of whatever signals you want. Not sure about the bandwidth though.
Measurement speed (2680A-FAI) Slow: 45 (50 Hz), 54 (60 Hz) readings/second nominalMedium: 200 readings/second nominalFast: 1000 readings/second nominal (5 readings/second for VAC nominal, 370 readings/second on 300 Ω range, 44 readings/second on 3 MΩ range)