Classroom learning. Previously know as just "learning," but now we need to differentiate c-learning from eLearning.

Content Delivery Network - Companies that deliver Web data (including streaming media) via an intelligent distributed network. For companies providing streaming content delivery services, this means that audio or video streams will be delivered more reliably, with less buffering and time outs. Generally, this will provide a better overall experience for the end user.

Computer Managed Instruction - CMI is another name for LMS.

Content Management System - This is a software application that makes it possible for non-technical users to publish content to a website, regardless of the type of site. Often confused with "course" management systems (see LMS and LCMS).

(compression-decompression) - Standard method of compressing and decompressing data, typically done with audio/video files where data is encoded or compressed to reduce file size. A codec allows an operating system or program to properly play audio or video in a particular format.