Technology Tops the Charts

Side scan sonar, shown being used to map the ocean floor, has emerged over the last 20 years. Image courtesy of NOAA.

Just twenty years ago, in an era of tapes, magnetic disks and manufacturers extolling their latest solid state microprocessor-controlled wonders, we had data loggers doing 100 soundings a second and programmers writing real-time software for 16 and 32 bit desktop computers boasting 20MB memories, and out in the field, radio ...

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