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History of Hardware Diagnostics, Observability, and Debugging

From sensory inspection, checking circuits, and test points to built-in self-test, remote management, digital twins, and AI-assisted fault isolation

PDF: https://www.dumpanalysis.org/files/History_of_Hardware_Diagnostics_Obser...

An oscilloscope trace, an error code, a maintenance log, and a microscopy image are different diagnostic artifacts. To interpret them, we need to understand how they were obtained and how the observed symptoms relate to the underlying mechanisms.

This book follows the development of hardware diagnostics, observability, and debugging from sensory inspection and electrical measurements to on-chip instrumentation, fleet analysis, and AI-assisted fault isolation. We consider checking circuits, reliability engineering, semiconductor test, memory and storage diagnostics, physical failure analysis, and the observation of hardware through firmware and software.

Our main interest is how the available evidence and the corresponding analysis changed. For example, an error-detecting code provides information about corruption, while a physical investigation may identify the condition that produced it. Such connections require us to distinguish faults, their propagation, symptoms, and the behavior of the instruments that recorded them.

We also discuss pattern-oriented analysis, unified computer diagnostics, and Hardware Narratology as approaches to relating hardware and software evidence. A selected chronology, glossary, evidence taxonomy, and extensive references provide historical context and starting points for further study.