A tub file: https://en.wikipedia.org/wiki/Tub_file https://en.wikipedia.org/wiki/Tub_file (Note that the overall search takes 10 seconds, not the one second o

A tub file: https://en.wikipedia.org/wiki/Tub_file https://en.wikipedia.org/wiki/Tub_file (Note that the overall search takes 10 seconds, not the one second of an individual seek... so the human had a bit more time to be competitive with the disk than a single second. :-) )