CS 144: Introduction to Computer Networking, Fall 2026
Course info
Course basics
| Lectures | Mondays & Wednesdays 1:30 p.m.–2:50 p.m. in Gates B1 |
| Lab sessions | Wednesdays, 7:30 p.m.–10 p.m. in CoDa B80 |
| Tutorial sessions | Thursdays or Fridays, starting week 2 (Oct. 1–2). Exception: no tutorial in week 6 after the midterm (Oct. 29–30) Signups for tutorial sessions will be posted on Ed in week 1. |
| Exams |
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| Calendar |  Subscribe to the CS144 calendar |
| Optional course texts | |
| Practice exams | |
| Contact | To contact the course staff, please use Ed, the lab sessions, or tutorials. You can also email the instructor in an emergency—I'm here to help but also often behind on email! |
| Accommodations for disabilities | Please use the submission form to submit OAE letters. Please don't send these via email or Ed. Please note deadlines for the exams (Oct. 7 for midterm, Nov. 11 for final). |
| Syllabus/logistics |  Syllabus/logistics handout |
| Ed | CS144 on Ed. Please make public posts when possible so answers can benefit anybody. Please don't post source code to lab solutions. |
| Gradescope | We use Gradescope for some grading. If you cannot enter this website, you may need to first join through Canvas. |
| Honor Code Discussion | In-class discussion of permissible collaboration |
Lecturer
Keith Winstein
Email: 
Course Assistants
Aya Aburous
aaburous
Jad Bitar
jadbitar
Gabriel Bo
gabebo
Nicholas Ingino
ningino
Thomas Li
bitset
Michaael Paper
mpaper
Grading Weights
Exams
Midterm
20%
Final
20%
Lab
Correctness
20%
Subjective
18% (best 6 out of 8 checkpoints, must do last checkpoint)
Tutorial
Subjective
3% (best 6 out of 8, graded ✔⁺, ✔, ✔⁻, ∅)
Quizzes
16% (best 6 out of 8)
Participation/helpfulness
3%
Lab Assignment
Lecture Notes
Week 1 (Sept. 23 only)
Wed