OCR H446 1.3.4: Web Technologies
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
A web page reaches your browser as three kinds of text: HTML for its content and structure, CSS for how it looks, and JavaScript for how it behaves. This lesson reads each, then asks where code should run: in the browser (client side) or on the web server (server side). The second half is about finding pages at all: how a search engine builds an index, and how Google's original PageRank algorithm decided which results to put first.
- HTML
- CSS
- JavaScript
- Client side and server side
- Search engine indexing
- PageRank
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- A12.9 Web technologies and search Networks and the web
HTML, CSS and JavaScript, client and server side processing, indexing and PageRank.
Try it on a robot
The task from A12.9 Web technologies and search, running here. Change the program and press Run.
The specification is OCR's own document; this page says which of our lessons teach point 1.3.4 and is not endorsed by the board.