Computer Science / Unit 10 CS 0544 short lesson, about 20 seconds
Web 1.0, Then 2.0
Captions available
The idea
The Web's first phase limited users mostly to reading and selecting pages; the second added interactivity — which meant maintaining state, heavier servers, and a clean separation of rendition, business logic, and data.
In practice
A read-only bulletin becoming a store with a cart is the transition in one site.
Where people slip
Interactivity's price was complexity, paid server-side first.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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