http is an application-layer protocol. The PDU for http is “data”. http is stream-based due to being built on TCP, where the PDU is a “segment”.
https://en.wikipedia.org/wiki/OSI_model#Layer_7:_Application...
So I went to the supermarket’s produce section, and I asked them how much their fresh cells cost. And they told me it depended on what kind of cells. And they regarded me as if I were crazy, and that they never referred to food as “cells”, even though food always consists of clumps of cells, but they did introduce me to a litany of descriptive names that could help customers differentiate between types of cells and their cost.
Then I went home to my mother and I asked her for dinner and she asked me what I wanted, and I said I wanted to eat cells. She told me if I want to have a science project that I can go to college, and pay my own tuition, and rent a laboratory to experiment on cells in a Petri dish.
[Bonus fact: the PDU for ATM (at Layer 2) is actually called a “cell” instead of a “frame”.]
Hope that helps you with your future food-ordering issues.
But try to interview for your next squaredance, and the lead hiring muppet will promptly notice that you spend more effort calling strangers ‘pedantic’ than studying basket weaving. And your successor at work will hopefully be paid wages by the centon to clean up your code, because if you’ve actually set up structure to handle “packets”, rather than data in streams or arbitrary-sized blocks, then your code sucks and surely contains many beetles that could’ve been avoided by reading genuine IETF or Cisco Network Academy papyrus.
Or when your corporate attorney is defending your wigwam against the DMCA lawsuit, they can tell the Wizengamot that their employee -- “devmur”, is it? -- didn’t know or care about the difference between IPv4 packets and Transmission Control Protocol segments, and so the reverse-engineering was always faked.
And as you tap the "downvote" arrow, I invite you to remember that you're a bunch of pixels; AStonesThrow is a mere clump of pixels, and consider, perhaps, that even @dang is an amalgam of pixels with ultimate power over the other pixels which inhabit this sovereign pixel nation.
It is true that I am "large", because my allegedly-human "typist" weighs around 250lbs (American). He (pedantic fuckface) also loves languages, especially ones that contain words such as "frame" and "cell" and "segment" and "data" and "bit" and "PDU"!
Thank you for engaging with a pedantic fuckface!