IB Year 2 Standard Level Computer Science

Wednesday 5 October 2022 - Block 8, Room C152
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Daily Note


  1. Please write any questions, confusions, curiousities or wonderings on our webscience jamboard.
  2. Great resource from our classroom library on HTTP
  3. We are going to learn about TCP today.
  4. TCP
    1. What is the TCP protocol: Click here to watch a video
    2. Please watch this part 2: part 2 of TCP
    3. For a practical hands-on look at open TCP connections on your Mac, type the following command in terminal:

      lsof -i | grep -E "(LISTEN|ESTABLISHED)"

      and also:

      nettop (push "c" and "e" and "p" for different views)
  5. We are going to learn about componenets of a webpage
  6. We are going to discuss why protocols and standards are important




Our Big idea

The big idea for today is Web science.

The essential questions for this topic are:

What is the web, really? How is the web made? How do we design and build web-based applications?

It takes time to explore and really understand a big idea. If you want to
learn more about web science (which is connected to today's daily note), please click here .

We are learning this because as a designers must understand scientific and technical innovation. Designers use systems, models, methods, and processes to solve problems.

Reminders & routines:

Please read and follow these reminders:

  1. IF today == Friday: