Summary of basic database and operating system concepts

Through this course, students can learn the overall flow of IT.

Through this course, students will learn the structure of computers and the overall concepts and flow of networks.

Through this course, students will be able to learn the overall concept of algorithms.

There are no special Next.js techniques that you can only learn by working in the field. I will explain based on the latest official Next documentation.

There are no special React techniques that you can only learn by working in the field. The basics are enough. I will explain based on the official React documentation.

Through this course, students will learn the overall concepts of data structures.

Through this lecture, students can create a web service similar to Instagram using HTML, CSS, and JS. (Only the front-end is implemented! The back-end server construction will be filmed in a later lecture.)

Through this course, students will learn overall knowledge of HTML, CSS, and JS.

SQL data analysis! We will teach you how to solve practical problems that are applicable in the field, quickly and easily!

Learn practical strategies for designing efficient and scalable database structures that accurately reflect the complex requirements of real-world scenarios.

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

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

Learn about Race Condition, a representative concurrency problem. Practice by comparing single server environments and distributed environments that cause concurrency issues. Understand transaction boundaries and isolation levels. Learn the differences between optimistic locking, pessimistic locking, and distributed locking.

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

This is Part 1 of a roadmap lecture that concisely organizes the essential computer science (CS knowledge) needed to excel in development and data, in a short period. This lecture has also been used as an in-house lecture at top domestic companies for several years. Based on 20 years of experience in actual practice, from system SW to web, app development, and data science, this lecture systematically yet easily organizes the essential core knowledge needed to excel in development and data.

A beginner's guide to SQL coding! We'll teach you the secrets of writing, interpreting, and validating SQL.

This is a course provided to those who have completed the course 'Learn broadly and superficially to become a computer science major' so that they can study the operating system in more depth.

"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.

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.

✅ Out of the entire series (1) ~ (7), (5) operating system, user interface, database ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

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

"I have a backend technical interview in a week, what should I start with?" The secret to answers that make interviewers nod Master the actual answer patterns of Naver, Kakao, Coupang, and Toss successful candidates in just 3 days!

A course that helps you understand core operating system concepts and practice explaining them verbally in interviews

You can learn about the basic structure and operating principles of computer hardware, design methods, and OS, and acquire the knowledge necessary to create good programs.

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!

Welcome to AWS? First Time? Let's learn together, from the basics of modern web systems to cloud deployment. It's not just simple AWS usage or following along with code; you can learn deeply how even difficult CS concepts are applied in the Cloud!

This course provides a step-by-step learning path, ranging from the fundamental usage of MySQL to advanced techniques required in real-world production environments. It covers a wide range of topics, including data modeling techniques based on various case studies and practical data, evaluating the effectiveness of Foreign Key designs, analyzing Google Calendar schema DDL, and modern DDL design principles. Through this course, you will gain an in-depth understanding of how to utilize MySQL as a core system component rather than just a simple database.

You need to have a solid understanding of the basic principles of operating systems to understand advanced programming techniques. This lecture is a specialist-level lecture on the dinosaur book, which can be called the bible of operating systems.