Module 08: Advanced Internals

[!NOTE] This module explores the core principles of Module 08: Advanced Internals, deriving solutions from first principles and hardware constraints to build world-class, production-ready expertise.

1. Module Overview

Welcome to the final frontier. In this module, we move beyond the single-machine, single-user desktop OS to explore how modern systems scale, virtualize, and operate under extreme constraints.

We will deconstruct the technologies that power the Cloud (Hypervisors, Containers), the Internet (Distributed Systems), and the devices in your pocket (Mobile OS).

Chapters

  1. Virtualization
    • Hypervisors (Type 1 vs Type 2)
    • Hardware Assist (Intel VT-x, EPT)
    • I/O Virtualization (Virtio)
  2. Containers
    • Namespaces (Isolation) & Cgroups (Limits)
    • Union Filesystems (OverlayFS)
    • OCI Runtime Specification
  3. Distributed OS
    • Transparency & RPC
    • Logical Clocks (Lamport)
    • Consensus (Paxos, Raft, CAP Theorem)
  4. Real-Time OS (RTOS)
    • Hard vs Soft Real-Time
    • Scheduling Algorithms (RMS, EDF)
    • Priority Inversion & Inheritance
  5. Mobile OS Architecture
    • Android Internals (Zygote, Binder, LMK)
    • iOS Security (Sandboxing, Entitlements)
    • Power Management
  6. Module Review
    • Flashcards & Cheat Sheet
    • Final Assessment

Module Chapters