Operating System

Learn how virtual memory overcomes physical memory limits through paging and page tables, and how page replacement algorithms such as LRU handle page faults.

Compare processes and threads through memory layout, resource sharing, context switching, multithreading tradeoffs, and common interview questions.

Learn how Docker packages applications into containers and how Kubernetes automates their deployment, scaling, and management.

Install Ubuntu 22.04 LTS with Windows Subsystem for Linux, create a Linux user, verify the installation, and access Windows files from Ubuntu.

Connect the operating-system concepts from days 1–19 into a complete picture of processes, memory, files, protection, virtualization, and networks.

Learn the fundamentals, benefits, structures, communication methods, design challenges, and distributed file systems behind distributed systems.

Understand virtualization, virtual-machine architecture, hypervisors, hardware support, and their trade-offs.

Understand protection principles, domains, access-control matrices, ACLs, capabilities, and operating-system protection policies.

Learn how operating system security protects systems and user data, with examples of common threats, encryption, authentication, and app security.

Learn how mounting, partitions, file sharing, VFS, and caching form the internal structure of a file system.

Learn how operating systems implement directory structures, file allocation, free-space management, and file system recovery.

Learn how file system interfaces manage files through access methods, directory structures, permissions, and memory-mapped files.

Understand I/O hardware, controllers, kernel subsystems, drivers, system calls, DMA, STREAMS, and I/O scheduling.

Understand how virtual memory provides an address space larger than physical memory, with examples of demand paging, page replacement, and copy-on-write.

Understand how TLB caching speeds up address translation and how swapping moves inactive processes between RAM and disk.

Learn about main memory, contiguous allocation strategies, paging, page tables, and multi-level address translation.

Understand deadlock, the Coffman conditions, and prevention, avoidance, detection, and recovery strategies with process and thread examples.

Explore practical synchronization scenarios, from classic problems to code examples, to prevent resource conflicts in concurrent environments and prepare for interviews.

Learn how mutexes, semaphores, and monitors coordinate access to shared resources and prevent race conditions.

Learn how operating systems allocate CPU time, compare common scheduling algorithms, and review the trade-offs often discussed in technical interviews.

Learn how threads divide execution within a process, enable concurrency, and introduce synchronization challenges such as race conditions and deadlocks.

Learn about processes, a core operating-system concept, with examples covering scheduling and inter-process communication. This topic often appears in technical interviews and coding tests.

Explore the components and design of an operating system, including user interfaces, system calls, linkers and loaders, kernel architectures, and the boot process.

An operating system manages computer resources and connects users with hardware. Explore its core roles, structure, resource management, security, and virtualization.