CS50

The CS50 Show. This Wednesday on YouTube.

This is #50seconds on Binary Digits with Professor @davidjmalan.bsky.social.

In this interview for The Harvard Gazette, Professor @davidjmalan.bsky.social talks about the CS50 Duck, the changing landscape of AI, and the future of computer science education. news.harvard.edu/gazette/stor...

Professor @davidjmalan.bsky.social goes on ABC’s Radio National Breakfast to talk about the nature of social media algorithms and what their regulation could look like. www.abc.net.au/listen/progr...

Olá, mundo! Estamos empolgados em lançar o CS50x, dublado em português. Aprenda os fundamentos da ciência da computação, desde a programação em diferentes linguagens até a compreensão da inteligência artificial, e muito mais. cs50.ly/pt, made possible with lingopal.ai.

¡Hola, mundo! Estamos lanzando CS50x doblado al español. Las 12 clases, con temas que van desde Scratch hasta Estructuras de Datos, ya están disponibles totalmente dobladas al español. ¡Feliz aprendizaje! cs50.ly/es, made possible with lingopal.ai.

Join us for one of two Zoom-based training sessions on Classroom 50 on Fri, July 24, 1-2 pm EDT. Access the session through Zoom: zoom.us/meeting/regi....

Join us today for the final Chapter 7 of Introduction to Artificial Intelligence with Brian Yu. Learn how AI can even move cars! youtube.com/live/HWgtlQ9...

Join us today for Chapter 6 of Introduction to Artificial Intelligence with Brian Yu. Learn how AI can generate text, images, video, and more. www.youtube.com/live/H4JgA0y...

Join us today for Chapters 4 and 5 of Introduction to Artificial Intelligence with Brian Yu. Learn how AI can sense objects and communicate with us humans. youtube.com/live/ttolMw1... | youtube.com/live/G_ZBZ8e...

Join us today for Chapters 2 and 3 of Introduction to Artificial Intelligence with Brian Yu. Learn how AI can make predictions and analyze data for you. youtube.com/live/gikcyLZ... | youtube.com/live/CVPosMW...

Join us today for Chapter 1 of a free, live, online series introducing the fundamentals of artificial intelligence (AI). This series is designed for anyone interested in better understanding how AI works and the ideas that make it possible. youtube.com/live/3q4KDSm...

Have you started CS50 2D yet? 🎮 This newest course by CS50 is a great place to go after finishing CS50x. Learn the fundamentals of creating 2D games. All lectures are available for free on YouTube at cs50.ly/2d. To take the course for a certificate, register at cs50.edx.org/2d.

Join us for a free, live, online series introducing the fundamentals of artificial intelligence (AI). This series is designed for anyone interested in better understanding how AI works and the ideas that make it possible. Sign up to attend any of the sessions via Zoom at cs50.harvard.edu/x/zoom/.

Check out this podcast with Professor David J. Malan by Harvard’s Mignone Center for Career Success! 🎙️ Learn about Professor Malan’s history of getting started with CS50 and transforming it into an academic powerhouse it is today.

What is your favorite 2D game of all time? 👾 Is it Super Mario Bros., Legend of Zelda, Angry Birds, Flappy Bird, Pokémon, Pong, Breakout, Match-3 or some other one? All CS50 2D lectures are available on YouTube at cs50.ly/2d. To take the course for a certificate, register at cs50.edx.org/2d.

In CS50 2D’s final lecture, explore the core mechanics and programming concepts behind Pokémon-inspired RPGs, including state stacks, GUI design, and turn-based battle systems. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 6 of CS50 2D — explore how Box2D physics powers Angry Birds-style gameplay with dynamic bodies, collisions, joints, and trajectory simulation in Love2D for mobile games. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 5 of CS50 2D — recreate the classic Legend of Zelda game mechanics, dungeon generation, hitbox design, screen scrolling, and data-driven game development. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 4 of CS50 2D, in which you’ll learn how to build a Super Mario-style platformer with tile maps, animations, procedural level generation, collision detection, entities, and game objects in Lua. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 3 of CS50 2D — explore how to build a smooth & engaging Match-3 game using tile grids, tweening, timers, and color palettes for fluid gameplay and polished visuals. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 2 of CS50 2D — learn how to build a classic Breakout game with sprite sheets, collision detection, procedural level generation, particle systems, game states, and persistent high scores. To take the course for a certificate, register at cs50.edx.org/2d.

This is Lecture 1 of CS50 2D — learn how to recreate the iconic Flappy Bird game using sprites, parallax scrolling, procedural pipe generation, collision detection, state machines, and input handling. To take the course for a certificate, register at cs50.edx.org/2d.

This is CS50 2D’s very first lecture on Pong — learn 2D game development fundamentals using Lua and Love2D, covering game loops, input, collision, OOP, states, and sound integration. To take the course for a certificate, register at cs50.edx.org/2d.

If you find yourself in Las Vegas on Monday, April 20, join us for an “engaging, interactive, and entertaining discussion about how Professor David J. Malan and his team have created and are using AI as a personal tutor for his students.” 🦆 Tickets available at www.eventbrite.com/e/embracing-....

Congrats to everyone who took part in this year’s CS50x Puzzle Day. 🧩 Here are the stats! Which puzzle was your favorite? Check out the solutions and memes at cs50.ly/puzzle-day-2026.

Join us on Monday, April 13, at 12:30pm EDT for live Office Hours with Professor David J. Malan and CS50’s own Brian Yu to ask questions about Computer Science, Artificial Intelligence, CS50 itself, and beyond. Register for Zoom at cs50.ly/officehours.

What was your favorite lecture from CS50 for Business? Comment below. 👇 The entire course is available on YouTube for free at cs50.ly/business. To take this course for a certificate, register at cs50.edx.org/business.

This Friday, April 3, join CS50 for a Tech Talk on why you’re still better than AI at editing documents, led by Nick Bernal of SuperDoc.dev, starting at 1pm EDT. Register for Zoom at cs50.zoom.us/meeting/regi....

Have you started CS50 for Business yet? This newest course from CS50 covers a broad range of topics, perfect for decision-makers of today and tomorrow. The entire course is available on YouTube for free at cs50.ly/business. To take this course for a certificate, register at cs50.edx.org/business.

Can you solve ‘BananAnanagrams’ from last year’s CS50x Puzzle Day? For an interactive spreadsheet version of the puzzle, visit tinyurl.com/banananagrams. See cs50.ly/puzzle-day-2025 for the solution. Register for this year’s Puzzle Day at cs50.ly/register.

Can you solve ‘Books’ from CS50x Puzzle Day 2024? See cs50.ly/puzzle-day-2024 for the solution. Register for this year’s Puzzle Day at cs50.ly/register.

Can you solve ‘Around the World’ from last year’s Puzzle Day? See cs50.ly/puzzle-day-2025 for the solution. Register for this year’s Puzzle Day at cs50.ly/register.

This is Lecture 8 (the last!) of CS50 for Business on Securing Systems. Learn how to secure systems with strong passwords, encryption, two-factor authentication, and best practices to protect your data from cyber threats and hackers.