How a Single Bit Inside Your Processor Shields Your Operating System's Integrity
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Why it's on BrighterTube
Hand-picked by a BrighterTube curator · found via Reddit r/learnprogramming thread: What are the YouTube channels you watch as a software developer? · 86% confidenceExplains how the CPU's privilege bit separates user mode from kernel mode, and how traps and system calls let programs request services without being able to corrupt the OS; a concept textbooks often hand-wave, animated clearly.
What you'll learn
How the CPU's user/kernel mode bit and system calls protect the operating system.
Video by Core Dumped, played through YouTube's embedded player.
Part of Operating Systems Theory
Go deeper
- Operating Systems: Three Easy Pieces, Arpaci-DusseauThe clearest OS book
- Computer Systems: A Programmer's Perspective, Bryant & O'HallaronHow programs really run on the machine, from bits to processes
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