How Harvard students turn programming lessons into real-world software during their final project
The climax of Harvard's CS50 course is a final project that challenges students to build software that solves actual problems or changes the world. Whether creating mobile apps, games, or hardware-based tools, students must demonstrate their programming savvy by applying course lessons to projects that aim to outlive the semester.
The final project serves as the capstone for CS50, Harvard University's introduction to computer science. Students are encouraged to develop software that addresses genuine needs, with the freedom to choose their own programming languages and infrastructure, provided they secure staff approval. This flexibility allows for diverse implementations, ranging from web-based applications using Python and SQL to command-line programs in C, mobile apps in Swift or Java, and even hardware-integrated projects.
Collaboration is permitted, with groups of up to three students allowed. However, the expectations for these groups scale linearly; a two-person team must produce twice the work of an individual, while a three-person team is expected to deliver triple the effort. Regardless of group size, every member must contribute equally to the design and implementation. Students are also permitted to combine their CS50 project with requirements from other courses, provided they obtain explicit approval from both sets of instructors.
The development process is structured to ensure academic rigor and feasibility. Students must submit a preproposal to bounce ideas off their teaching fellow, followed by a formal proposal for final approval. These steps are mandatory; projects submitted without approval may not receive credit. The process emphasizes early planning, requiring students to navigate technical workflows within the CS50 IDE, including directory management and secure submission protocols. While the proposal is not binding, any subsequent changes to the project plan require further approval from the assigned advisor.
Ultimately, the goal is to create something of lasting value. By requiring more time and effort than standard problem sets, the course pushes students to move beyond academic exercises. Whether the project impacts the campus or reaches a wider audience, it represents the culmination of the student's newfound programming capabilities, turning theoretical lessons into functional, real-world software.
