Zoom Meetings

CS50 occasionally holds live lectures and sections that anyone on the internet is welcome to attend or watch, whether taking any of CS50’s courses or not!

For any Zoom meeting you attend, please take care to

participate from a quiet office or similar space (and not from a bed, car, hammock, plane, or train), and
participate with your camera turned on, using horizontal (not vertical) video.

If unable to accommodate these norms some week, please watch the live stream or recording at youtube.com/cs50 instead.

Fall 2024

Whether you are a CS50x student, a CS50 AP student, a prospective student, a teacher, a parent, or a Harvard alum (or anyone else!), you are cordially invited to watch any or all of Fall 2024’s lectures online or even attend in person at Harvard University in Cambridge, Massachusetts, USA. These lectures will become part of CS50x 2025 on edX, so watching or attending now offers a bit of a preview.

To watch online, register at cs50.ly/watch.
To attend in person register at cs50.ly/attend.

Schedule

Lectures

If registered to watch online, we’ll email you instructions for how to join the lecture (via Zoom or YouTube), at least an hour before each lecture. And we’ll also post links below.

Zoom	Lecture	Date	YouTube
Launch	Scratch	2024-09-04T13:30:00-04:00/2024-09-04T16:15:00-04:00	Watch
Launch	C	2024-09-09T13:30:00-04:00/2024-09-09T16:15:00-04:00	Watch
Launch	Arrays	2024-09-16T13:30:00-04:00/2024-09-16T16:15:00-04:00	Watch
Launch	Algorithms	2024-09-23T13:30:00-04:00/2024-09-23T16:15:00-04:00	Watch
Launch	Memory	2024-09-30T13:30:00-04:00/2024-09-30T16:15:00-04:00	Watch
Launch	Data Structures	2024-10-07T13:30:00-04:00/2024-10-07T16:15:00-04:00	Watch
Launch	Python	2024-10-21T13:30:00-04:00/2024-10-21T16:15:00-04:00	Watch
Launch	SQL	2024-10-15T10:00:00-04:00/2024-10-15T12:45:00-04:00	Watch
Log in via GitHub	HTML, CSS, JavaScript	2024-10-23T13:00:00-04:00/2024-10-23T16:00:00-04:00	Watch
Log in via GitHub	Artificial Intelligence	2024-10-25T12:00:00-04:00/2024-10-25T13:00:00-04:00	Watch
Log in via GitHub	Flask	2024-11-07T13:00:00-05:00/2024-11-07T16:00:00-05:00	n/a
Log in via GitHub	The End	2024-11-18T13:30:00-05:00/2024-11-18T16:15:00-05:00	Watch

Sections

If registered to watch online, we’ll email you instructions for how to join the section (via Zoom or YouTube), at least an hour before each section. And we’ll also post links below.

Zoom	Week	Section	Date	YouTube
Launch	Week 1	C	2024-09-10T11:30:00-04:00/2024-09-10T13:00:00-04:00	Watch
Launch	Week 2	Arrays	2024-09-17T11:30:00-04:00/2024-09-17T13:00:00-04:00	Watch
Launch	Week 3	Algorithms	2024-09-24T11:30:00-04:00/2024-09-24T13:00:00-04:00	Watch
Launch	Week 4	Memory	2024-10-01T11:30:00-04:00/2024-10-01T13:00:00-04:00	Watch
Launch	Week 5	Data Structures	2024-10-03T11:30:00-04:00/2024-10-03T13:00:00-04:00	Watch
Launch	Week 6	Python	2024-10-22T11:30:00-04:00/2024-10-22T13:00:00-04:00	Watch
Log in via GitHub	Week 7	SQL	2024-10-29T11:30:00-04:00/2024-10-29T13:00:00-04:00	Watch
Log in via GitHub	Week 8	HTML, CSS, JavaScript	2024-11-06T11:30:00-05:00/2024-11-06T13:00:00-05:00	Watch
Log in via GitHub	Week 9	Flask	2024-11-12T11:30:00-05:00/2024-11-12T13:00:00-05:00