Buffer Cache & Page Cache
How operating systems cache disk blocks in RAM, the difference between write-back and write-through caching, and how sync semantics work.
Posts in technical
Build Your Own OS
A hands-on project guide to building a minimal operating system from scratch: boot loader, kernel, scheduler, and file system.
Building a Simple CPU Simulator: Implementing the Fetch-Decode-Execute Cycle
Implement a functional CPU simulator in Python that demonstrates the fetch-decode-execute cycle, register file, ALU operations, and memory access.
Cache & Buffer Management
How the CPU cache hierarchy works, what cache coherence protocols do, and how the OS manages buffer cache and write policies in the page cache.
Deadlock & Starvation
Deadlock conditions (Coffman), prevention strategies, detection & recovery
Device Drivers Architecture
Explore character vs block devices, driver layers, and kernel vs user mode drivers in modern operating systems.
Directory Implementation
How file systems implement directories through linear search, hash tables, and B-trees, enabling efficient path resolution and file lookup operations.
Disk Structure & Layout
Exploring how physical storage is organized through CHS addressing, LBA, disk geometry, and partition schemes like MBR and GPT.
Distributed Operating Systems
Explore distributed file systems, RPC mechanisms, cluster scheduling, and the fundamental concepts behind modern distributed operating systems.
DMA (Direct Memory Access)
Learn how DMA bypasses the CPU for device-memory transfers, DMA buffers, scatter-gather I/O, and IOMMU security.