What Is the First Thing You Should Learn in Computer Science?

To be frank – there is no one surefire way to learn computer science and different people and have mastered computer science coming from different backgrounds. What works for one person may not work for the next person. That said – there are some fundamental concepts that can serve as building blocks.

Starting your computer science journey can feel overwhelming, but the right first step sets a strong foundation. Whether you’re aiming for a career in tech or just exploring, structured courses from platforms like

Coursera and Udemy can help guide your learning path. So, what should you tackle first?

The First Steps in Computer Science

  • Programming Fundamentals (Python or JavaScript): Start with an easy-to-learn language like Python or JavaScript to grasp core concepts like variables, loops, and functions. Udemy’s “Python for Beginners” is a great resource.
  • Basic Algorithms & Problem-Solving: Learn how to break down problems and write efficient solutions. Platforms like LeetCode and Coursera’s “Algorithmic Toolbox” help build this skill.
  • Computer Science Principles: Understand binary, how computers process data, and basic hardware/software interactions. Harvard’s CS50 on edX is a fantastic free introduction.
  • Version Control (Git & GitHub): Learn to manage code changes early. LinkedIn Learning’s “Learning Git and GitHub” is a solid starting point.
  • Simple Projects: Apply knowledge by building small programs (e.g., a calculator, to-do list). Skillshare’s coding classes offer hands-on guidance.

FAQs

1. Should I learn math before coding?

Basic algebra helps, but advanced math isn’t required upfront. Focus on problem-solving—many intro courses (like Khan Academy’s CS) assume minimal math.

2. What’s the easiest programming language for beginners?

Python is widely recommended for readability, while JavaScript is great for web development. Codecademy’s free Python course (https://www.codecademy.com/learn/learn-python-3) is beginner-friendly.

3. How long does it take to learn the basics?

With 5–10 hours/week, you can grasp fundamentals in 3–6 months. Structured courses (e.g., Udacity’s Intro to Programming Nanodegree) speed up progress.

4. Do I need a computer science degree to start?

No! Many self-taught developers use online resources (Coursera, Udemy, edX) and build portfolios to land jobs.

Final Thoughts

The best first step in computer science is mastering programming basics and problem-solving. Start with Python or JavaScript, practice with small projects, and use platforms like Coursera or Udemy for guided learning. Consistency matters more than speed—keep coding daily!

For further learning, check out:

Coursera’sComputer Science 101

Udemy’s “Complete Python Bootcamp“: