This is CS50 (aka CSCI E-50) at Harvard Extension School. Looking for CS50 on edX? Or for CS50’s own OpenCourseWare?

This was CS50

Harvard Extension School
Fall 2021

  • Week 0 Scratch
  • Week 1 C
  • Week 2 Arrays
  • Week 3 Algorithms
  • Week 4 Memory
  • Week 5 Data Structures
  • Week 6 Python
  • Week 7 SQL
  • Week 8 HTML, CSS, JavaScript
  • Week 9 Flask
  • Week 10 Emoji
  • Cybersecurity
  • 🙋Ed Discussion for Q&A
  • Announcements
  • FAQs
  • Final Projects
  • Labs
  • Office Hours
  • Problem Sets
  • Quizzes
  • References
  • Sections
  • Seminars
  • Staff
  • Syllabus
  • Test
  • CS50 Status Page
  • Visual Studio Code
  • Recommended Settings for Zoom