Essential Computer Science Knowledge for Job Preparation

Version control is now essential knowledge for developers. Let's learn Git and Github step by step, starting with basic git commands and signing up for Github :)

This is a lecture on the book [Everyone's Git & GitHub] published by Gilbut Publishing. It contains only the essentials of version control using Git and GitHub. You will learn how to use Git, which can be considered a developer's essential knowledge, without commands and how to use GitHub proficiently.

Bestseller 『Study Computer Architecture + Operating Systems on Your Own』 author's free lecture. A collection of computer architecture and operating systems books that developers must know.

Free lecture by the author of the best-selling book, “Network Study Alone.” A summary of a network textbook that developers must know.

This is a lecture for all non-major beginners who want to become computer science majors by memorizing broadly and shallowly. You can quickly learn what you can learn in essential computer science major subjects such as computer architecture and operating systems. Above all, you can finish it by memorizing it!

This lecture is a lecture on database basics in the [Web Development Full Stack Course] lecture series for training full-stack web developers. This lecture is a process of understanding database design while analyzing Netflix and Carrot Market. It is a basic lecture where you can learn basic database design principles and SQL.

MySQL for non-majors! This lecture quickly skims through essential concepts with brief explanations, then allows you to learn MySQL hands-on by "playing" with examples on the site.

Programming is a science of logic and reason. Data structures are essential for more independent thinking and proactive coding. This lecture is designed to explain various terms and concepts for non-majors. Based on the content actually taught in offline classes, you can learn about the types and characteristics of data structures through simple code design.

From HTTP basics to data requests, real-time communication, security, and performance optimization, learn the network knowledge web developers must know.

The most complete bible for passing all coding tests.

This course teaches MS-SQL through baseball/company databases.

"I know I need to study SQL, but I don't know where to start." When you open a database book, terms like normalization, B-Tree, and clusters... it's daunting right from the start. This course strips away all those complex theories and includes only what you truly need. Where are KakaoTalk messages stored? Why is the MapleStory trade window secure? Starting with everyday examples like these, you can grasp the entire flow of SQL in just 2 hours by coding along through installation → creating tables → CRUD → JOIN → and indexes.

Introduction to SQL Data Analysis! Quick and easy to understand with practical problem solving!

[Web Dev Beginners Only] Build a Spring Boot REST API easily, step-by-step, fully understanding JPA.

✅ Out of the entire series (1) ~ (7), (4) data structure, algorithm, object-oriented, programming language ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

This is a course on creating a practical Unity game with a database. You can learn through lectures about aspects that are difficult to encounter.

Strengthen your coding skills through coding test problems by learning Python-based data structures and algorithms!

From TCP/IP to HTTP! This lecture is for those who lack basic network theory and want to understand major theories by memorizing them. You can do it!

mongoDB, NoSQL You hear a lot these days, but is it still an unfamiliar database? Aren't you using it like a relational database (RDS/SQL)? No matter how good the technology is, if it's not used correctly, it will have the opposite effect. That's why we often see cases of failure in using MongoDB. This lecture will teach you everything from basic concepts to practical know-how so that you can use MongoDB as MongoDB-like as possible.

I learned it the hard way, so you can learn it the easy way I've discarded unnecessary theory and included only the SQL essentials. Quickly build your SQL confidence.

[Newbies to Web Development Only] Let's Build a Spring Boot REST API Step-by-Step, the Easy Way

Analysis of CS major interview questions [Operating system/data structure/algorithm/database/network]!

Learn the fundamentals of the web, networks, and HTTP that every developer should know, in a code-based, real-world, data-driven way.

CS knowledge lectures on design patterns, networks, operating systems, databases, etc. from the author of the #1 book in Korea, "CS Major Knowledge Notes for Interviews"! Covers all the concepts needed for CS interviews and the latest past questions!