Web 1.0 refers to static website, also known as flat pages or stationary pages. This website is “as is” meaning cannot be manipulated by the user and their content is the same for all user.
Most of the web 1.0 are written in plain HTML(Hypertext Markup Language) code.
Examples of web 1.0
Web 2.0 is a website that contain dynamic content. Dynamic sites are usually fetches data from the server and is written using server side scripting language such as PHP, ASP, JSP, and cold-fusion.
The most common example of web 2.0 are facebook.com, youtube.com, twitter etc.. all are dynamic websites in which data is updated every moment.