Summary of general concepts for IT beginners

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.

Through this course, students will learn the overall concepts and flow of databases and operating systems.

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.

I will transform the Engineer Information Processing written exam (Subjects 1–5) from a "test you solve by memorizing" into a "test where you connect clarified points directly to your score." This is an ultra-compressed lecture designed to help you grasp the entire flow within 3 days. It extracts only the core concepts repeated in past exams, structured to be understood even if viewed right before the test. The course is designed for short-term success by clearly distinguishing between frequently confusing concepts, trap points in multiple-choice options, and what needs to be memorized versus what only needs to be understood. "I'm short on time, but the scope is too broad." "I feel like I know the material when reading the book, but I keep getting the questions wrong." This lecture is for students facing these exact challenges.

This lecture is expected to help students build a foundation in computer architecture.

Through this course, you can understand the basic knowledge of ITIL 4 for IT Service Management (ITSM). Those who are preparing for the ITIL 4 Foundation exam can also challenge the exam with a complete understanding of knowledge, not just dumps. (However, this course is not aimed at the ITIL 4 Foundation exam.)

I have been working in the IT field for 20 years in development and construction. I would like to be a good guide for those who are entering or starting out in the development field.

This course guides you to accurately understand essential programming concepts and theories that are often neglected in the rush of implementation. By learning similar, contrasting, and related concepts together, you will master multiple ideas at once. After completing this course, you will become a developer with a solid conceptual foundation.

You can learn the basics of AWS and Terraform usage simultaneously. You can become familiar with them through hands-on practice.

We will explain the core computer architecture and operating principles that SW developers need to know in an easy-to-understand manner through illustrations.

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.

This lecture explains the principles of computer architecture, which is the knowledge underlying programming, for non-majors. The goal of the lecture is to become familiar with the principles of program operation.

Based on learning fundamental concepts of programming and Python, we solve mathematical problems using Python. (Solutions and roots of equations, drawing graphs)