October, 2025

Long Article 101: Memory Management – Boot Phase: Memory Layout from Real Mode to Paging

dean written 9 months ago

Long Article 101: Memory Management – Boot Phase: Memory Layout from Real Mode to Paging “The kernel code is linked at 1MB+, but the CPU starts in real mode — today we unveil the boot phase memory layout and see how the kernel safely enables paging!” In the OS boot process, memory management is the... » read more

Teach AI to Turn Lights On and Off in 15 Lines of Code: A Smart Energy-Saving Butler with Neural Networks

dean written 9 months ago

15 Lines of Code to Teach AI to Turn Lights On and Off: A Smart Energy-Saving Butler with Neural Networks No rules, no if-else, just “trial and error + reward” — let AI learn to intelligently control lighting. This is the magic of Reinforcement Learning! Problem: When Should the Light Be On? Is your home... » read more