CS107e Winter 2026

CS107e is Computer Systems from the Ground Up. Read more about the course and review answers to common questions from prospective students and enrollment information.

When and where

(discussion forum)

(RISC-V simulator)

RISC-V cheatsheet

D1-H User manual

Mango Pi pinout

Compiler Explorer

This week in CS107e

Week 5
Lecture Mon 2/2	Memory Management ( slides, code ) Read our overview of stack frames Review dynamic memory allocation (`malloc`/`free` in C) and the operation of the heap (K&R 5.6-5.9 or Essential C Section 6). Compare and contrast stack versus heap allocation. Why do we need both?
Lab/assign	Lab 4: Linked and Loaded ( writeup ) Prelab to prep before lab.	Assignment 4: Stack and Heap ( writeup )
Lecture Fri 2/6	C Mastery ( slides, code ) We've crossed the halfway point! We will use this lecture to catch-up/expand on lecture content covered lightly on first pass, and discuss how to further your mastery of C. Readings: Google style guide for C/C++ code: https://google.github.io/styleguide/cppguide.html Read code! Our code, your code, other published code,… Some selected projects to browse: https://github.com/dwelch67/raspberrypi, David Welch baremetal examples https://opensource.apple.com, Apple OpenSource https://directory.fsf.org/wiki/GNU, Free Software Foundation (GNU) https://musl.libc.org, Musl C library The masters share their best practices in the book "Beautiful Code: Leading Programmers Explain How They Think" https://www.amazon.com/dp/0596510047

See schedule for entire quarter.

Meet the team

Aditri

Ashley

Daniel

Elias

Frances

Joe

Julie

Nifemi