[CS Technical Interview Part 1] Easy Guide to Computer Architecture

🚀 Introducing the first lecture [Computer Architecture] from the Technical Interview Master Roadmap.

📕 Computer Architecture is a subject that serves as the foundation of all computer science concepts.

• You know binary, but are you confused about how negative numbers/real numbers are stored❓

• Pipelining/Superscalar, I've heard of them but can you explain why they're necessary❓

This course is the one solution that will quench that thirst of yours. Rather than simply memorizing concepts, it clearly organizes computer architecture(computer-architecture) with a diagram-centered, flow-centered, and practice-centered approach, helping you transform into 'someone who truly knows'.

🎯 Through this course, you will be able to clearly answer the following questions.

• What is the CPU composed of and what does it do?
  → We explain the roles of the arithmetic logic unit, registers, and control unit, as well as the instruction processing flow, easily with diagrams.

• How are RAM and cache different, and why is a hierarchical structure necessary?
  → Explains the structural differences based on memory access speed and location with examples.

• How do hard disks and flash memory work differently and when are they used?
  → We intuitively compare the types, operating methods, and performance differences of secondary storage devices.

• How are instructions structured, and how does the CPU execute them?
  → We organize interview staple concepts like instruction formats, addressing modes, and pipelining with a focus on diagrams.

• How does a computer receive input and produce output data?
  → Explains the control methods of input/output devices and their connection relationships with practical systems.

  
  

  
  

📌 At the end of the lecture, a practical interview practice chapter awaits you.

You can also practice answering frequently asked technical interview questions like "What does the CPU do?", "Why is cache memory necessary?", and "What are interrupts and why are they needed?" by giving yourself one or two sentence responses.

📖 A curriculum packed with only the essentials

This is the curriculum and key keywords you will learn in this course.

If there are unfamiliar keywords, make sure to grasp them firmly this time. It's free, after all.

💡 Non-majors can also succeed in developer jobs - CS is the key!

"I thought it would be over once I passed the coding test. But it wasn't."

I too, when first preparing for a developerjob, was obsessed only with algorithms and coding tests. I gained some confidence and passed most coding tests. However, I kept failing at the next hurdle - technical interviews.
What was the problem?

It was precisely the lack of CS (Computer Science) knowledge. In interviews, CS fundamentals were considered much more important than algorithms. However, there was no need to dive deep into every CS subject. There were separate core CS concepts that frequently appear in technical interviews.

This course is a roadmap that systematically organizes those scattered core CS knowledge pieces. For those who, like me as a non-CS major, experienced frustration, I've clearly organized complex CS theories with a flow-centered approach. Furthermore, I've included core question practice chapters to help develop the 'ability to explain' required in technical interviews. Now it's time to transform into a real developer through complete CS mastery.

✏ Here's what you'll learn

👀 Course Preview

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🖐 Hello! Let me introduce myself! 🙇

I created this course while thinking of my past self, who stayed up all night worrying about fundamentals and had my heart racing over a single interview question.

I started as a non-major and know better than anyone the thirst for fundamentals (CS knowledge, programming languages, etc.). After diving into countless materials through self-study and building my own know-how, I eventually graduated from Seoul National University and now work as a 🧑🏻‍💻 Kakao developer.

Since childhood, I've been more confident than anyone in combining and restructuring various materials to create 'my own comprehensive study notes.' This course is precisely that 'ultimate self-study secret note' born from all my passion and philosophy.

🔥 What makes this course special?

• All of my 'know-how' is included: As a non-CS major, I have fully incorporated my experience and know-how of self-studying CS and programming languages and getting hired at a large corporation. I have included in this course all the methods for how to most efficiently understand complex and abstract concepts and make them your own.

• 'Fundamentals' are key in any development field: Whether you're aiming for game development, AI, web/app development, or any other field, basic knowledge of computer science is not optional but essential. This course helps you become a true expert based on solid fundamentals.

• We compete with 'overwhelming quality': I've referenced countless materials including textbooks, lectures from prestigious universities, commercial books, and technical interview resources to extract core keywords and reconstruct them in my own unique way. With intuitive diagrams and illustrations, plus easy explanations infused with my practical experience, I promise to make even complex concepts click with that "Ah, now I get it!" moment.

🗣 Real Interview, Why is 'Speaking Practice' Important? (My Vivid Experience)

Let me share my experience with you. In an interview at a certain company, I was asked a question about floating-point numbers. Even though I had read about it multiple times in books and thought I understood it, I couldn't utter a single word. I painfully realized that simply reading and understanding through passive learning wasn't enough to answer questions in real interviews.

You've probably experienced this at least once. You definitely studied and understood well, but because you didn't organize individually and practice 'speaking', all that effort was useless in real situations.

To succeed in interviews, you need not only to accumulate a lot of knowledge but also the ability to explain this knowledge. This 'ability to explain' can only be developed through practice of organizing concepts into just a few sentences and speaking them out loud. Through this process, you can also discover what you didn't know precisely.

My lectures don't miss this crucial point. After learning each core concept, we'll practice together in the 'Interview Practice' chapter where we practice summarizing in a few simple sentences that fit the interview format. Through this course, I will personally help ensure that your knowledge shines in front of the interviewer. ✨

💡 Curious about other interview preparation courses? Check out the roadmap below :)

Pre-enrollment Reference Information