In this episode, Charlie uses information theory and information entropy to help understand the manifesto and probabilistic graph theory in an attempt to determine where the perpetrator is likely to be found.
While investigating a major meth laboratory, Charlie and Megan recover a hard drive belonging to the primary meth distributor. Unfortunately, the disk had been badly damaged by the explosion of the meth lab. In spite of that - and luckily for the investigators - in many cases it is still possible to recover data on a badly damaged drive by making use of a computer's built-in redundancy in data. Essentially, even large portions of the files on a drive are lost or erased, because of symmetry and redundancy in most modern data storage, Charlie had a chance!
This clip describes how computers work and how humans can interact with them. It makes mention of the programming language, BASIC, in addition to basic units of information such as bits and bytes.
Beakman explains that a video game is a version of a computer. He goes over all of the computer components and then to show how this all works, they do a skit. In the skit, they have to give the exact program code to Lester (aka computer) to be able to do the action they want.