CS50: Introduction to Computer Science (2024)

This is CS50x

An introduction to the intellectual enterprises of computer science and the art of programming in an online course from Harvard.

Featuring faculty from:

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CS50: Introduction to Computer Science (1)

CS50: Introduction to Computer Science (2)

Self-Paced

Length

11 weeks
10-20 hours a week

Certificate Price

$219

Start CS50 Today.

What You'll Learn

This is CS50x , Harvard University's introduction to the intellectual enterprises of computer science and the art of programming for majors and non-majors alike, with or without prior programming experience. An entry-level course taught by David J. Malan, CS50x teaches students how to think algorithmically and solve problems efficiently. Topics include abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development. Languages include C, Python, SQL, and JavaScript plus CSS and HTML. Problem sets inspired by real-world domains of biology, cryptography, finance, forensics, and gaming. The on-campus version of CS50x , CS50, is Harvard's largest course.

Students who earn a satisfactory score on 9 problem sets (i.e., programming assignments) and a final project are eligible for a certificate. This is a self-paced course–you may take CS50x on your own schedule.

The course will be delivered via edX and connect learners around the world. By the end of the course, participants will be able to:

  • A broad and robust understanding of computer science and programming
  • How to think algorithmically and solve programming problems efficiently
  • Concepts like abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development
  • Familiarity in a number of languages, including C, PHP, and JavaScript plus SQL, CSS, and HTML
  • How to engage with a vibrant community of like-minded learners from all levels of experience
  • How to develop and present a final programming project to your peers

Your Instructors

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CS50: Introduction to Computer Science (3)

David J. Malan

Gordon McKay Professor of the Practice of Computer Science, Harvard John A. Paulson School of Engineering and Applied Sciences

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CS50: Introduction to Computer Science (4)

Doug Lloyd

Senior Preceptor in Computer Science, Harvard University

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CS50: Introduction to Computer Science (5)

Brian Yu

Senior Preceptor in Computer Science, Harvard University

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CS50 Recommended


"The Best Way to Learn to Code in 2024!? - CS50 Review" by isentope. https://youtu.be/3xMZ7z7B4vE?feature=shared

"Harvard's Free coding courses are excellent. You need to take them." by Python Programmer. https://youtu.be/WwEcPcfRlD0?feature=shared

"I tried Harvard University's FREE CS50: Introduction to Computer Science course | CS50 review 2020" by Sunny Singh. https://youtu.be/DSA34lhJvw4?feature=shared

"Learn To Code For FREE At Harvard University // CS50: Introduction To Computer Science Review" by Dorian Develops. https://youtu.be/He4jqZ2EjrE?feature=shared

Ways to take this course

When you enroll in this course, you will have the option of pursuing a Verified Certificate or Auditing the Course.

A Verified Certificate costs $219 and provides unlimited access to full course materials, activities, tests, and forums. At the end of the course, learners who earn a passing grade can receive a certificate.

Alternatively, learners can Audit the course for free and have access to select course material, activities, tests, and forums.Please note that this track does not offer a certificate for learners who earn a passing grade.

Have Questions?

Can I enroll in this course if I'm not a programmer? Are there any prerequisites? Learn the answers to these and more in our FAQs.

Course FAQs

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Back to top

CS50: Introduction to Computer Science (2024)

FAQs

Is CS50 Introduction to computer science certificate worth it? ›

Yes. In fact, around two thirds of students who enroll in CS50 have never taken a computer science course before. So if you're new to the field and looking to learn the basics, you'll be in good company.

Is CS50's Introduction to computer science hard? ›

CS50 is a rigorous introduction to computer science. You're going to learn a lot of coding languages and you're gonna feel as if you don't have much of a grasp on them since this course moves so fast.

Is CS50's Introduction to computer science free? ›

Most notably, the course is entirely free, and it includes a free certificate of completion. But understanding how to obtain it can be a bit confusing. So in this article, let's discuss CS50 and explain how you can earn a free certificate.

What is the introduction to computer science content of CS50? ›

About this course

Topics include abstraction, algorithms, data structures, encapsulation, resource management, security, software engineering, and web development. Languages include C, Python, SQL, and JavaScript plus CSS and HTML.

Is Harvard CS50 enough to get a job? ›

Is CS50 enough to get a job? The knowledge you will acquire from taking CS50 will bring you close to being a confident software developer, however, just this course alone is not enough to get a job, you'll still need to apply your skills by creating projects. You will also need to network, and gather some experience.

Is CS50 a valid certificate? ›

Verified certificates require you to verify your identity using a webcam and a photo identification card, so employers and schools know that you completed the course work.” A CS50 Certificate is a free certificate from CS50 itself; CS50 does not verify identities.

How fast to finish CS50? ›

On average, the course takes between 10 to 20 hours per week to complete. A minimum of 9 assignments is needed to pass the course.

Why is intro to CS so hard? ›

Initially Computer Science seems hard because learning to program is challenging. Programming is the first task that Computer Science students must master, and programming requires an extremely logical and methodical approach to solving problems.

What level of difficulty is CS50? ›

How difficult is CS50? For many students, CS50 is simply more time-consuming than it is difficult. Starting each week's problem set early, then, makes things easier!

Can I do CS50 with no experience? ›

CS50 does not assume any prior computer science or programming experience. In fact, two-thirds of Harvard's CS50 students had never written a line of code in their lives prior to CS50.

Can I get CS50 certificate without paying? ›

If you submit and receive a score of at least 70% on each of this course's projects and quizzes, you will be eligible for a free CS50 Certificate like the below. For a verified certificate from edX, register at https://cs50.edx.org/ai.

What does CS50 stand for? ›

CS50 (Computer Science 50) is an on-campus and online introductory course on computer science taught at Harvard University and Yale University.

Does the CS50 certificate have any value? ›

Is Harvard University's CS50 certificate worth it? Yes, it is. The certificate course is delivered by one of the best educational institutions. The entire online learning experience is excellent for students to jumpstart their careers in tech.

Is CS50 an actual Harvard course? ›

Introduction to Computer Science from Harvard, better known as CS50, is the largest course on the Harvard campus and more than 4,000,000 learners worldwide have registered for the course on edX.

How much does a CS50 certificate cost? ›

Ways to take this course

A Verified Certificate costs $219 and provides unlimited access to full course materials, activities, tests, and forums.

Is it hard to get CS50 certificate? ›

If you submit and receive a score of at least 70% on each of this course's projects and quizzes, you will be eligible for a free CS50 Certificate like the below. For a verified certificate from edX, register at https://cs50.edx.org/ai. Email certificates@cs50.harvard.edu with any questions.

How much is CS50's Introduction to computer science Certificate? ›

A Verified Certificate costs $219 and provides unlimited access to full course materials, activities, tests, and forums.

Should I start learning programming with CS50? ›

This course is especially recommended for beginners due to its slow pace and beginner-friendly content. By the time you finish this course, you should be proficient enough to proceed to the more intense courses. Remember, the primary key here is consistent learning, and not rushing through the course.

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