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CS50

@cs50 • 151,233 subscribers

@Harvard's introduction to the intellectual enterprises of computer science and the art of #programming, taught by @davidjmalan. Verify at https://t.co/FhE8Tv95yY.

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Harvard Computer Science course is available to everyone online — search for CS50 on YouTube or sign up for free at
0:23
cs50's profile picture

Harvard Computer Science course is available to everyone online — search for CS50 on YouTube or sign up for free at

CS50

483,382 views • 3 years ago

On January 1, 2026, we’re launching the new-and-improved version of CS50x on and @CS50’s YouTube. A little sneak peek below!
0:45
cs50's profile picture

On January 1, 2026, we’re launching the new-and-improved version of CS50x on and @CS50’s YouTube. A little sneak peek below!

CS50

23,242 views • 6 months ago

This is CS50x 2026 with David J. Malan, CS50's (free) introduction to the intellectual enterprises of computer science and the art of programming, now with artificial intelligence (AI). 🦆 Full season available on edX on January 1, 2026. Register at #education #community #stranger #things
1:00
cs50's profile picture

This is CS50x 2026 with David J. Malan, CS50's (free) introduction to the intellectual enterprises of computer science and the art of programming, now with artificial intelligence (AI). 🦆 Full season available on edX on January 1, 2026. Register at #education #community #stranger #things

CS50

13,823 views • 7 months ago

Happy holidays from Professor David J. Malan and @CS50’s whole team here in Cambridge. 🎁 Stay tuned for release of CS50x 2026 on January 1, 2026.
0:46
cs50's profile picture

Happy holidays from Professor David J. Malan and @CS50’s whole team here in Cambridge. 🎁 Stay tuned for release of CS50x 2026 on January 1, 2026.

CS50

10,711 views • 6 months ago

From @CS50’s entire team, happy holidays! 🎄We'll be back in 2025 with a new-and-improved CS50x, new opportunities to engage, updates to past courses, and some brand-new ones as well. There will also be a few surprises along the way! 🤫
0:34
cs50's profile picture

From @CS50’s entire team, happy holidays! 🎄We'll be back in 2025 with a new-and-improved CS50x, new opportunities to engage, updates to past courses, and some brand-new ones as well. There will also be a few surprises along the way! 🤫

CS50

18,908 views • 1 year ago

From Harvard University University in Cambridge, Massachusetts, this is CS50x 2025. Available on January 1, 2025, on YouTube, edX, Apple TV, Google TV, and beyond. Open to anyone online; no prior programming experience required. Enroll for free at And meet CS50’s #AI-powered duck of whom you can ask questions along the way, thanks to GitHub, OpenAI, and Microsoft! 🦆
1:16
cs50's profile picture

From Harvard University University in Cambridge, Massachusetts, this is CS50x 2025. Available on January 1, 2025, on YouTube, edX, Apple TV, Google TV, and beyond. Open to anyone online; no prior programming experience required. Enroll for free at And meet CS50’s #AI-powered duck of whom you can ask questions along the way, thanks to GitHub, OpenAI, and Microsoft! 🦆

CS50

13,162 views • 1 year ago

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