Request and Response
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A web browser transmits a request to a web server — software running at a Uniform Resource Locator — and the server responds with pages rendered in the hypertext markup language.
Show
Every page a phone displays arrived through this exchange, client-server at scale.
Watch for
The server is software at an address, no building required.