Zero-trust architecture for industrial OT and IoT — micro-segmentation patterns, identity for machines, NIST SP 800-207 applied to plants, and what the Purdue model gets wrong.
How CMOS image sensors actually work — photons hitting silicon, photodiodes, Bayer filters, rolling shutter, BSI vs FSI, and stacked sensors in 2026 phones.
AMD MI400 Instinct architecture for AI training — CDNA 4, HBM4 stacks, UALink interconnect, ROCm stack maturity, and how MI400 stacks up against Nvidia Rubin.