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Operating Systems

Operating systems guides covering process management, memory management, file systems, CPU scheduling, synchronization, and OS design principles.

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Operating Systems: Core Concepts & Architecture Overview Foundational guide to operating systems: process management, CPU scheduling, memory management, synchronization, … 8 min Process Scheduling Algorithms in Operating Systems Guide to CPU scheduling algorithms: FCFS, SJF, Round Robin, Priority, Multilevel Queue, Linux CFS; context switching, … 9 min Memory Management in Operating Systems Explained Guide to OS memory management: virtual memory, paging, page tables, TLB, page replacement algorithms, demand paging, … 9 min File Systems in Operating Systems: Structure & Design Guide to file systems: ext4, NTFS, APFS, FAT32; inode structure, allocation methods, journaling, VFS abstraction, and … 9 min Synchronization & Concurrency in Operating Systems Guide to OS concurrency: race conditions, critical sections, mutexes, semaphores, monitors, spinlocks, classical … 9 min Virtual Memory: Paging, TLBs, and Demand Paging Explained In-depth guide to virtual memory: multi-level page tables, TLB architecture, demand paging, page replacement algorithms … 10 min IPC in Operating Systems: Pipes, Shared Memory, Sockets & More Complete guide to IPC mechanisms: pipes, FIFOs, shared memory, message queues, sockets, signals, mmap; comparisons, use … 8 min Deadlocks in OS: Prevention, Avoidance, Detection & Recovery Learn deadlocks in operating systems: four Coffman conditions, prevention strategies, Banker's algorithm, detection via … 9 min I/O Systems in Operating Systems: Architecture & Performance Learn I/O systems: programmed I/O, interrupt-driven I/O, DMA, buffering, caching, spooling, device controllers, kernel … 8 min Threads and Concurrency in Operating Systems Learn threads and concurrency in operating systems — thread models, user vs kernel threads, thread pools, threading … 7 min Virtualization & Containers: From Hypervisors to Docker & K8s Guide to virtualization and containers: Type 1/2 hypervisors (KVM, VMware), Linux namespaces, cgroups, Docker, VMs vs … 10 min Distributed Operating Systems: Architecture & Design Deep dive into distributed operating systems: system models, distributed file systems, consistency models (CAP theorem), … 9 min Operating System Boot Process Explained Step by Step Complete guide to the OS boot process: BIOS vs UEFI, POST, bootloader stages (GRUB), kernel initialization, systemd … 9 min Kernel Architecture: Monolithic, Microkernel & Hybrid Design Guide to OS kernel architecture: monolithic vs microkernel vs hybrid designs, Linux kernel modules, system call … 9 min Device Drivers: How OS Kernels Interface with Hardware Comprehensive guide to device drivers: character, block, network drivers, Linux driver model, kernel modules, ioctl, … 8 min Real-Time Operating Systems (RTOS) Learn real-time operating systems — hard vs soft real-time, scheduling algorithms, RTOS kernels, prioritization, and … 8 min Process Synchronization in Operating Systems Learn process synchronization in OS — semaphores, mutexes, monitors, classical synchronization problems, concurrent … 8 min Operating System Security Guide Learn operating system security — user authentication, access control, memory protection, secure boot, kernel hardening, … 7 min