Cap - A maximum amount of data that can be downloaded a month.

Chrome - A popular internet browser, free from the Google Corporation.

Codec -  A small piece of computer code that tells the computer how to decode particular types of information, usually video files. If your video player won't play a particular format, you can usually download and install a codec which will tell it how from the internet.

CSS - stands for Cascading Style Sheet, decribes how HTML elements are to be displayed on screen, paper, or in other media.

Calibration - The process of checking and adjusting a measuring intrustment to ensure accuracy.