[Verse 1] Deep inside your computer's heart Lives a layer set apart Kernel space where privilege reigns Managing memory, files, and chains While up above in user land Applications make their stand Separated by a wall so high Protection keeps the system spry [Chorus] Mono-lithic, all in one Micro-kernel, job's half done Space divided, ring zero's king Drivers bridge the gap they bring Kernel space controls it all User space obeys the call Memory mapped, protected zone System calls to reach the throne [Verse 2] Monolithic giants hold it tight Everything packed in kernel sight Device drivers, file systems too Memory management in one view Fast and tight but hard to change One bug crash across full range Linux walks this beaten path Facing both blessing and wrath [Chorus] Mono-lithic, all in one Micro-kernel, job's half done Space divided, ring zero's king Drivers bridge the gap they bring Kernel space controls it all User space obeys the call Memory mapped, protected zone System calls to reach the throne [Verse 3] Modular minds prefer to split Services small, each doing their bit Message passing keeps them talking Memory servers always walking Mach and QNX lead the way Stability saved for another day Slower calls but safer ground When one fails, others stay sound [Bridge] Ring zero's sacred, hardware blessed Kernel mode at its finest best Ring three above, the user layer System calls the only player Drivers sit right in between Translating what hardware means Interrupts come knocking loud Kernel answers, strong and proud [Outro] Architecture shapes the way Every process lives and plays Choose your kernel, make it right Monolith or modular might
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