When I began learning computer science after intermediate studies, a computer was merely a machine that powered on and off. Once I peeled back the abstraction layer of graphical user interfaces, I uncovered the elegant mechanics of kernel drivers and hardware communication.
What Happens Behind a Click?
Every interaction with an operating system triggers an electrical interrupt from peripheral hardware to the CPU. The interrupt controller alerts the kernel, which executes the associated interrupt handler inside the driver subsystem.
Understanding memory-mapped I/O (MMIO), ring buffers, and asynchronous event queues transforms how an engineer perceives application-level software development.
Deep Diving into the Linux Kernel
Reading Linux kernel source code clarifies how process schedulers juggle thousands of tasks with precision. Modern concepts like eBPF, cgroups, and virtual file systems (sysfs, procfs) reveal how operating systems balance performance and isolation.
This systems foundation continues to anchor my approach to building resilient distributed software and architecting compute-efficient AI solutions.