Broadband is a general term used to describe any high-speed, high-bandwidth, “always on” internet connection.
Cable modems, DSL modems, satellite link-ups, and T1 lines are all broadband devices. Dial-up modems and other low-bandwidth devices are called “narrowband.”
Caching (pronounced CASH-ing) is a technique computers use to save memory by storing frequently accessed files.
Web browsers have caches that keep recently downloaded web pages handy. Browser caches are typically kept on your local drive, and you can usually adjust the amount of memory or disk space allotted for the cache. The benefit of web caches is that you can access a cached page much more quickly than if you downloaded it from a distant server.
Channels refer to the conduits in which to deliver content or data.
In web development, channels may refer to the data feeds allowing content onscreen without reloading the page or redrawing the whole screen. Channels may also refer to the paths a computer uses to transmit information between peripherals.
As a computer science term, data binding is the substitution of a real value in a program after it has been compiled.
For example, during compilation a compiler can assign symbolic addresses to certain variables or instructions. When the program is bound, or linked, the binder replaces the symbolic addresses with real machine addresses. The moment at which binding occurs is called “bind time” or “link time.” In dHTML, data binding allows the client to look into a database and retrieve the content. This data can be automatically displayed in your table using the HTML data binding extensions, or you can manipulate the data with a script.