Tech Docs
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Learn how early banks moved money from physical coins into deposits, ledgers, banknotes, checks, credit, and reserve-based settlement systems.
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OSFEC.003 explains firmware hardware debugging with JTAG, SWD, OpenOCD, GDB, breakpoints, watchpoints, register and memory inspection, backtraces, and fault analysis.
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OSFTC.003 teaches firmware technicians how to back up device state, verify images with checksums and hashes, preserve golden images, use rollback safely, and validate recovery after flashing.
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OSFOEC.003 explains how to select optical transceivers by form factor, host port, data rate, fiber type, wavelength, reach, power budget, FEC, thermal limits, breakout behavior, and interoperability.
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Fiber optics technician lesson on OTDR field testing: launch/receive fibers, range, pulse width, wavelength, event tables, dead zones, trace interpretation, and fault location.
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Data center engineering lesson on cooling architecture, airflow, ΔT, containment, psychrometrics, economization, direct-to-chip liquid cooling, CDUs, and hybrid thermal design.
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Data center technician lesson on structured cabling, patch panels, T568B copper termination, fiber polarity, labeling, bend radius, cable management, testing, and physical-layer troubleshooting.
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Robotics engineering lesson on inverse kinematics, analytical and numerical solvers, Jacobian pseudoinverses, damped least squares, redundancy, joint limits, convergence, and calibration accuracy.
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Open Source Robotics Technician lesson on robot mastering, zero position, absolute encoders, reference marks, single-axis recovery, calibration, verification, and safe maintenance.
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Semiconductor engineering lesson on PN-junction electrostatics: depletion width, built-in potential, electric field, applied bias, junction capacitance, C–V measurement, and process implications.
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OSSTC.003 teaches semiconductor technicians how fab vacuum systems work, including roughing and dry pumps, turbomolecular pumps, vacuum gauges, load locks, pumpdown behavior, leak detection, troubleshooting, and safe recovery.
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OSC++.021 explains modern C++ smart pointers, ownership semantics, RAII, unique_ptr, shared_ptr, weak_ptr, factory patterns, polymorphic cleanup, reference cycles, and practical memory-management design.
