how a computer works

Operating Systems

People demanded more from their computers and operating systems help achieve that

what is an operating system?

Get introduced to the role of an OS: managing hardware, running programs, and making systems usable.
processes and scheduling

Learn how the OS juggles multiple programs using processes and various scheduling algorithms.
threads and concurrency

Explore how multithreading works, and how operating systems handle concurrency and synchronization.
memory management and protection

Understand how the OS isolates processes, using base-and-bounds, segmentation, and virtual memory.
virtual memory and paging

Dive into how virtual memory works, including paging, page tables, and memory abstraction.
cpu virtualization

See how operating systems give the illusion of a dedicated CPU through time slicing and context switching.
synchronization and deadlock

Learn the problems of shared resources, and how OSs handle race conditions and deadlock prevention.
file systems and storage

Explore how data is stored on disks, how file systems work, and how files are organized and accessed.
input/output and device drivers

Understand how OSs communicate with hardware devices through drivers and I/O management.
security and isolation

See how the OS enforces boundaries between users and processes to protect against malicious behavior.
system calls and user/kernel mode

Learn how programs request OS services and the importance of user vs. kernel privilege levels.
virtual machines and containers

Wrap up with how OS-level virtualization powers cloud computing, VMs, and lightweight containers.