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Computer Architecture

[CS Technical Interview 1] Computer Architecture That Opens Up Your Speech

A course that helps you understand core computer architecture concepts and practice explaining them verbally in interviews

(4.9) 71 reviews

1,852 learners

Level Beginner

Course period Unlimited

  • yiyj10305235
Computer Architecture
Computer Architecture
Tech Interview
Tech Interview
computer-science
computer-science
Computer Architecture
Computer Architecture
Tech Interview
Tech Interview
computer-science
computer-science

Reviews from Early Learners

Reviews from Early Learners

4.9

5.0

100and

50% enrolled

The lecture covers deeper content than I expected. Since it's compressed and not too long, I plan to listen to it multiple times. I'm convinced that if I absorb it well, it will be really helpful. Thank you for the great lecture!

5.0

ShinYS

94% enrolled

The lecture is concise, but seems to contain the core content well. Also, the quality of the provided materials was very good.

5.0

codo

61% enrolled

I was looking for a CS lecture and found a really good one. The explanations are very easy to understand, and I'm planning to take other lectures as well.

What you will gain after the course

  • Understanding Core Concepts of Computer Architecture

  • The ability to explain things verbally in technical interviews

  • Practical workbook PDF that prepares you for follow-up questions

말이 트이는 CS 기술면접 소개 포스터

🥲 Have you ever had this experience in an interview?

1. Confusing concepts when answering

❓InterviewerWhat are the characteristics of object-oriented programming?
💬 Candidate The SOLID principles. First, S is....(omitted)...

This is a situation where the characteristics of object-oriented programming (abstraction, encapsulation, inheritance, polymorphism) and
object-oriented design principles (SOLID) are confused.
This can give the impression that the foundational framework of basic concepts is not established.

2. Knowing only What, but unable to explain How / Why

❓Interviewer What are the characteristics of TCP?
💬 Candidate It's a protocol that guarantees reliability.
❓ Interviewer What mechanisms guarantee reliability?
💬 Candidate Uh... well... it makes transmission safe... like...

You only know the superficial definition and are not prepared to explain the principles.
If the 3-way handshake, sequence numbers, ACK, retransmission, flow control, and congestion control
are not connected as one coherent flow, you will inevitably get stuck on follow-up questions.

3. Getting stuck on basic questions

❓Interviewer What is HTTP?
💬 Candidate Um... it's for sending and receiving data on the web... something like that...?

It's a very familiar concept, but when you actually try to explain it in one sentence, the words don't come out.
This isn't a lack of knowledge, but rather a lack of experience organizing and articulating it.


Just knowing is not enough. It only becomes true skill when you can articulate it.

🔥 So we've structured it this way.

✦ A cut above the rest, premium content for interview preparation

1⃣ CS Notes organized specifically for interview preparation

  • We compiled essential concepts and principles to review before interviews into comprehensive lecture materials.

  • While building fundamentals, it's structured so you can review it again right before your interview.

  • It's not just a simple summary, but includes diagrams and easy explanations so that even non-majors can fully understand.


Computer Architecture Lecture Material Example

2⃣ Appendix | Interview Practice Materials Provided

  • In interviews, the ability to explain clearly is far more important than simply knowing something.

  • However, organizing and practicing on your own is not easy and can be tedious work.

  • At the end of the lecture materials, we've included "answering in one or two sentences" training to reduce the effort of organizing.


Database Course Appendix Example

3⃣ Prepare for follow-up questions with our Technical Interview Practice Workbook PDFincluded

  • "Will this course alone really be enough for speaking practice?"
    After pondering this question,

    I created a Technical Interview Practice Workbook.

  • I designed it so you can practice speaking as if in a real interview even on your own.

  • You can find detailed information about the workbook structure and how to use it in the workbook introduction video at the beginning of the course.

Operating System Workbook Example

4⃣ A course that keeps growing with a single purchase

  • This course is provided with unlimited access period.

  • The content will continue to expand with new explanations, additional examples, and more.

  • Even if the price increases as content is added, students who have already purchased
    can access all content at no additional cost.

  • It's a CS fundamentals textbook you can keep coming back to whenever you need it.

💡 Here's how to make the most of this abundant content

1⃣ Download the materials and learn key concepts while watching the lectures.
2⃣ Take notes on important parts to create your own CS interview notebook.
3⃣ Save it on your phone and review briefly whenever you have time.

If you have an interview coming up,
and don't have much time → Use the appendix [Interview Practice] in the course materials to quickly sharpen your interview skills.
If you have time → Complete your speaking practice like a real interview with the Technical Interview Practice Workbook..

🎯 Recommended for

Non-majors, job seekers, career changers, and anyone preparing for technical interviews who needs to be able to articulate CS fundamentals verbally

CS majors who need to review

I've studied it before, but
I can't bring myself to reorganize all that CS knowledge again

Don't open those thick textbooks
again.
We'll cover only the essentials clearly.

Non-CS majors who find CS overwhelming

I'm preparing for a technical interview
for the first time and don't know
where to start

By following the roadmap,
you can focus on learning
only the core CS concepts..

Job seekers with no time to spare

I don't have time.
I need to quickly cover everything
from CS fundamentals to interview prep

You can quickly review on your own
with lecture materials and
interview chapters available.

🔥 Reviews from students who experienced it first

A truly helpful course.
Already proven by 3,000+ students.

⭐️⭐️⭐️⭐️⭐️

1. A lecture that shows how much the author has thought and considered from the student's perspective (seems to consider the learner's flow of understanding)
2. Easy to understand with diverse visual materials and examples
3. When learning knowledge, it mentions and reminds you of previously learned content, connecting the knowledge. As knowledge connects, the big picture emerges.
4. The depth of knowledge is not shallow. I'm taking the OS course right after computer architecture, and the synergy is great.
5. Scratches the itch of "why" & "why is this used" questions.
ps. Sorry to the author, but... this is a lecture I want to keep to myself.

-'Operating Systems' Course Review

⭐️⭐️⭐️⭐️⭐️

Despite the short lecture duration, I really appreciate how you clearly explain only the important parts. Since it was somewhat theory-focused, I didn't expect SQL queries to be covered, but it was great that you showed examples one by one while teaching basic syntax and how to write queries. After that, the coverage of joins, normalization, transactions, indexes and data optimization, and security was excellent. I haven't tried other paid courses yet, but the last lecture appendix titled "Interview Practice" showed actual questions and answers, which was great for self-study and practice. The lecture duration isn't too long if you focus, so I think I'll go through it multiple times. Thank you

-'Database' Course Review

⭐️⭐️⭐️⭐️⭐️

The core content was explained clearly with a logical flow, which helped me quickly review data structures. Thank you for the great lecture.

-'Data Structures' Course Review

⭐️⭐️⭐️⭐️⭐️

Wow... this is really so good...;;;; I need to save up money and buy the entire roadmap.. I'm curious if you're planning to do lectures on Spring as well.. I'll buy it right away..

-Review of 'Java and Object-Oriented Programming'

⭐️⭐️⭐️⭐️⭐️

This is a lecture where you can set aside a day and organize the key concepts of JavaScript all at once! Great for a refresher before interviews👍



-'JavaScript' Course Reviews

⭐️⭐️⭐️⭐️⭐️

As a non-CS major, I was worried about how to study CS knowledge, especially computer architecture and operating systems, but the appropriate amount of content made it easy to learn without burden, and it felt like getting tutored by an expert, which was great. I'm planning to take the operating systems course as well and looking forward to it. Thank you!

-'Computer Architecture' Course Review

🖐 Hello! Let me introduce myself! 🙇

As someone from a non-CS background, when I first prepared for a developer job, I only focused on algorithms and coding tests.
I gained some confidence and passed most coding tests, but I kept failing at the next hurdle—technical interviews. What was the problem? It was the lack of CS (Computer Science) knowledge.

I know the thirst for fundamentals (CS knowledge, programming languages, etc.) better than anyone. I dove into countless materials through self-study and built up my own know-how, and now I'm working as a 🧑🏻‍💻 Kakao developer.

Since I was young, I've been more confident than anyone in combining and reorganizing various materials to create 'my own consolidated notes'. This course is that secret notebook containing all that know-how and passion.

🚀 The first course in the CS Series That Makes Sense is Computer Architecture.

  • Do you know how negative numbers and floating-point numbers are stored in computers?

  • Have you heard of pipelining/superscalar, but can you explain why they're necessary?


📖 Curriculum packed with only the essentials chỉ chứa những nội dung cốt lõi

This is the table of contents and key keywords you'll learn in this course.
Take this opportunity to firmly grasp any unfamiliar keywords. Because it's free.

Computer Architecture

  1. Data and Representation

    • Bit, byte, integer, two's complement, floating point, ASCII code, Unicode, UTF-8


  2. Computer Architecture

    • CPU, memory, I/O devices, system bus

  3. CPU Structure and Functions

    • ALU, Control Unit, Registers, Instruction Processing Flow

  4. CPU Operating Principles

    • Instruction format, operands, interrupts, pipelining (including limitations and hazards), superscalar processors

  5. Main Memory

    • RAM, MMU, cache memory, hit rate, average memory access time, cache locality and hierarchical structure

  6. Secondary Storage

    • Hard disk structure (platter, head, spindle, disk arm) and data access time, RAID

  7. Input/Output Devices

    • I/O devices, I/O modules, and DMA

  8. [Appendix] Interview Practice

    • Review key concepts once more in Q&A format

✏ Here's what we'll cover

1⃣Understanding the Core of Computer Architecture Through Flow

  • The roles and connection structure of CPU, memory, cache, bus, and I/O devices
    → Explanation with diagrams of what function each component performs and how they are connected

  • How data and instructions flow through the computer
    → Provides a learning flow by organizing diagrams and text together, following the sequence of understanding


명령어 처리 흐름 도식

Instruction processing flow diagram

2⃣ Step-by-step flow explanation using handwritten notes

  • Rather than simply memorizing concepts, by adding handwritten notes directly on diagrams
    → You can naturally grasp the flow of complex structures like cache, memory hierarchy, and pipelines

  • A structure that allows you to review and organize like study notes even while taking the course

2의 보수 연산 설명

Two's complement operation explanation

3⃣ Understanding the essence of concepts through formula analysis

  • Instead of simple memorization, understand the structure and meaning of concepts through formulas

  • Examining how actual system operations are quantified to provide a strong foundation for interviews and practical work

평균 기억 장치 접근 시간 계산 분석

Calculating and Analyzing Average Memory Access Time

👀 Course Preview

If the video is frozen, please refresh :)

Looking at the UTF-8 encoding process

Calculating instruction execution time after applying pipelining

말이 트이는 CS 시리즈

Notes Before Enrollment

  • Provided learning material format: PDF

  • This is a course that does not require any prerequisite knowledge.


Recommended for
these people

Who is this course right for?

  • A non-CS major who feels lost because they're new to studying computer science

  • A computer science major who needs to organize CS concepts before a technical interview

  • Job seekers with limited time before technical interviews

Hello
This is

3,787

Learners

170

Reviews

24

Answers

4.9

Rating

7

Courses

Education and Experience

  • Graduate of Seoul National University

  • Current Kakao Server Developer

    Course Introduction I am creating the "Fluent CS" series to help you articulate CS concepts during interviews. Course Philosophy Having started development as a non-computer science major, I understand the importance of CS...

Course Introduction I am creating the "CS for Speaking" series to help you articulate CS concepts during interviews. Course Philosophy Having started development as a non-computer science major, I...

Course Introduction

I am creating the
CS Speaking series to help you articulate CS concepts during interviews.

Teaching Philosophy

I started my development career as a non-CS major and went through a lot of trial and error while personally organizing everything from CS fundamentals to technical interviews. Based on the learning methods and conceptual organization know-how accumulated through that process, I create content that makes core concepts encountered in practice and interviews easy to understand through illustrations.
"I am creating the lectures that I needed back then."

Blog yiyj1030.tistory.com → Running a tech blog that simplifies CS, algorithms, and practical concepts. Contact yiyj1030@gmail.com

Blog

  • yiyj1030.tistory.com
    → Running a tech blog that simplifies and organizes CS, algorithms, and practical concepts

Contact

yiyj1030@gmail.com

Curriculum

All

23 lectures ∙ (2hr 49min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

71 reviews

4.9

71 reviews

  • niko368237님의 프로필 이미지
    niko368237

    Reviews 5

    ∙

    Average Rating 5.0

    5

    100% enrolled

    It seems great for building a solid foundation. Thank you for the excellent lecture!

    • yiyj10305235
      Instructor

      Hello Jeonghoon Lee! I'm glad it can help with the fundamentals :)

  • itmedahwa님의 프로필 이미지
    itmedahwa

    Reviews 3

    ∙

    Average Rating 5.0

    5

    100% enrolled

    This was my first time studying CS, but it was easy to understand and I could feel the concepts I had seen while studying for computer literacy and other computer-related certifications connecting together. I especially like how the interview practice appendix at the end is neatly organized for use during interviews. I think it would be great if you could do one for Python too haha..

    • yiyj10305235
      Instructor

      Hello Dahwa, I'm glad that the pieces of knowledge can be connected together :)

  • a200327182710님의 프로필 이미지
    a200327182710

    Reviews 1

    ∙

    Average Rating 5.0

    5

    61% enrolled

    It's fun.

  • rrecordd0622님의 프로필 이미지
    rrecordd0622

    Reviews 10

    ∙

    Average Rating 4.8

    5

    96% enrolled

    It's nice to see it light and fast

    • yeo727님의 프로필 이미지
      yeo727

      Reviews 3

      ∙

      Average Rating 5.0

      5

      30% enrolled

      It's great that you explained it step by step!

      Free

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