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Fundamentals of Operating Systems

21h 41m 1s
English
Paid

Unlock the mysteries of operating systems! Operating systems orchestrate numerous processes, manage access to memory, disk, and networks, and execute processes by scheduling them to the CPU. While this might sound straightforward, the complexity is immense. A software engineer's ability to write efficient programs heavily relies on their understanding of operating systems.

Why Understanding Operating Systems Matters

The importance of demystifying the black box — I have always been fascinated by unveiling and understanding the hidden aspects of systems, which are often treated as incomprehensible black boxes. For example, a decade ago, databases were such black boxes for me. I was perplexed when a query that initially ran swiftly began to slow down after a few months. This happened due to my lack of understanding of database systems and their internal workings.

Diving Into Operation Systems

The same principle applies to operating systems. We run programs that transform into processes using memory, disk, and network resources. However, without understanding how this happens, engineers are likely to write inefficient code. Gaining insights into operating systems is crucial for developing optimized and effective software.

About This Course

I designed this course to unveil the essential elements of operating systems for software engineers. As with all my courses, I recommend that students have some programming experience, as it makes the course content more relatable. Throughout the course, we will explore various operating systems, including Linux, Windows, and Mac.

I hope you enjoy the learning journey.

About the Author: Udemy

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Udemy is the largest open marketplace for online courses on the internet. Founded in 2010 by Eren Bali, Oktay Caglar, and Gagan Biyani and headquartered in San Francisco, the company went public on the Nasdaq in 2021 under the ticker UDMY. The platform hosts well over two hundred thousand courses across software development, IT and cloud, data science, design, business, marketing, and creative skills, taught by tens of thousands of independent instructors. Roughly seventy million learners use it worldwide, and the corporate arm — Udemy Business — supplies a curated subset of that catalog to enterprise customers.

Because Udemy is a marketplace rather than a single editorial publisher, the catalog is uneven by design. The strongest material lives in the long-form, project-based courses authored by working engineers — full-stack JavaScript, React, Node.js, Python data science, AWS, Docker and Kubernetes, mobile development with Flutter and React Native, and cloud certification preparation. The CourseFlix listing under this source is the slice of that catalog that has been mirrored here for offline-friendly viewing, organized by topic and updated as new releases land. Pricing on Udemy itself swings dramatically with the site's near-permanent sales, which is why the platform is best treated as a deep reference catalog: pick instructors with strong reviews and a track record of updating their material rather than buying on the headline price alone.

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#1: Welcome
All Course Lessons (50)
#Lesson TitleDurationAccess
1
Welcome Demo
03:02
2
Who is this course for?
05:10
3
Course Overview and Outline (must watch)
20:41
4
Course Downloadable Content
01:02
5
Section Intro Why an OS
05:55
6
Why do we need an Operating System?
27:36
7
System Architecture Overview
51:51
8
Anatomy of a Process Section Intro
06:44
9
Program vs Process
53:00
10
Simple Process Execution
23:57
11
The Stack
28:28
12
Process Execution with Stack
37:20
13
Data section
21:03
14
The Heap
47:46
15
Process Section Demo
10:35
16
Memory Management Section Intro
08:12
17
The Anatomy of Memory
44:11
18
Reading and Writing from and to Memory
24:26
19
Virtual Memory
51:52
20
DMA
16:53
21
Memory Section Demo
13:39
22
Inside the CPU Section Intro
04:22
23
CPU Components and Architecture
01:05:44
24
Instruction Life Cycle
19:11
25
Pipelining and Parallelism
20:03
26
Inside the CPU Demo (CPU wait times)
21:31
27
Process Management Section Intro
11:42
28
Process vs Thread
01:00:00
29
Context Switching
37:24
30
Concurrency
28:39
31
Demo Process Management
14:38
32
Storage Management Section Intro
08:45
33
Persistent Storage
48:10
34
File Systems
01:10:17
35
What really happens in a file IO?
11:03
36
Storage management Demo
25:37
37
Socket Management Section Intro
05:51
38
Network fundamentals
01:42:34
39
Sockets, Connections and Kernel Queues
33:53
40
Sending and Receiving Data
24:02
41
Socket Programming Patterns
15:04
42
Asynchronous IO
28:37
43
Socket Management Demo
40:14
44
OS Concepts Section Intro
03:05
45
Compilers and Linkers
36:45
46
Kernel vs User Mode switching
11:02
47
Virtualization and Containerization
24:44
48
Course Summary
02:16
49
How Google Improved Linux TCP/IP Stack by 40%
12:03
50
How TikTok's Bytedance improved Linux reboot
10:22
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Frequently asked questions

What prerequisites are recommended before taking this course?
The course is designed for individuals with some programming experience. This background helps students relate more effectively to the course content, as it delves into technical aspects like process execution, memory management, and CPU architecture.
What will I learn to build or understand through this course?
This course focuses on understanding the inner workings of operating systems rather than building a specific project. Students will gain insights into topics such as process management, memory management, and CPU architecture, which are crucial for writing efficient software.
Who is the target audience for this course?
The course is aimed at software engineers and developers who wish to deepen their understanding of operating systems. It is particularly beneficial for those seeking to optimize their code by understanding how processes, memory, and CPUs are managed and utilized.
How does the depth of this course compare to similar courses?
The course offers a detailed exploration of operating system fundamentals, including process management, memory allocation, and CPU architecture. With 50 lessons, it provides a comprehensive overview, suitable for those looking to build a strong foundational understanding of these concepts.
What specific tools or platforms will be covered in this course?
The course delves into several key components of operating systems, such as virtual memory, DMA, file systems, and socket management. It also covers advanced topics like virtual and containerized environments, providing a broad view of modern operating system capabilities.
What topics are not covered in this course?
The course does not cover specific programming languages or application development frameworks. Its focus is on the underlying principles and mechanisms of operating systems, rather than software development techniques or user interface design.
How can the knowledge from this course be applied to other areas or careers?
Understanding operating systems is fundamental for software development and engineering roles. The insights gained from this course can be applied to optimize software performance, troubleshoot system-level issues, and enhance one's ability to work with various computing resources efficiently.