Web 1.0 was a "Read-Only Web," where users could only retrieve and read information.

Web 2.0 is called the “Read-Write Web,” where users can read, write, interact with, and collaborate on information.

Web 3.0 is often called the ‘Read-Write-Execute Web,’ emphasizing users' data ownership and connected knowledge.

Web 4.0 is the latest evolution of the World Wide Web, and it promises to be even more user-friendly and interactive than its predecessors.