What exactly is a Content Delivery Platform?

I ran across this Wikipedia article on Content Delivery Platforms which describes them as:

...a software as a service (SaaS) content service, similar to a content management system (CMS), that utilizes embedded software code to deliver web content. Instead of the installation of software on client servers, a CDP feeds content through embedded code snippets, typically via JavaScript widget, Flash widget or server-side Ajax.

So I'm fully aware of CDNs, what they are, and how they work (from the consumer's point of view), but the above description of these "CDPs" is just vague and ambiguous to me:

• "...that utilizes embedded software code...", "...feeds content through embedded code snippets..." : what in the world does this mean?!? What is this "embedded code"?!? Do they mean that CDPs are like networks of RaspberryPis or other embedded devices/SoCs?
• How would these "embedded code snippets" interact with JavaScript widgets?