Lectures · S01 — What is data communication?
Week 1 · Class 1 · Sep 13–17

S01 — What is data communication?

Week 1 of 12Class 1 · 80 minvideo lecture video lectureanimation clip 5 animationsinteractive demo 5 live demos

Reading: Forouzan 5th ed. §1.1–1.2 — data communications; networks

LectureAnimationsTry it

The lecture — full video

The complete session, narrated end to end, with subtitles. Turn captions on with the CC button.

Loading the video…

Captions play from YouTube · download the subtitle file (.vtt)

Animations — with voice-over

The animations from the lecture, cut out on their own. Each keeps its narration; turn captions on with the CC button once it is playing.

Jitter, and what a buffer costs
UTF-8, character by character
Zooming into the pixels
Sampling: three steps, once
A packet’s journey

Try it — Everything becomes bits

Everything becomes bitsdemo_bits_explorer.htmlopen full screen ↗

Try it — Who may talk, and when

Who may talk, and whendemo_duplex_sim.htmlopen full screen ↗

Try it — Jitter — and what a buffer costs

Jitter — and what a buffer costsdemo_jitter_lab.htmlopen full screen ↗

Try it — Connected is not communicating

Connected is not communicatingdemo_protocol_mismatch.htmlopen full screen ↗

Try it — Turning a wave into numbers

Turning a wave into numbersdemo_sampling_lab.htmlopen full screen ↗
Next →S02Networks, topologies and switching