One of the most interesting parts of teaching information communication technology classes despite not being formally trained in that field is picking up terms and concepts that I never learned as part of my degrees. One of the most interesting concepts I’ve picked up along the way is the formal distinction between digital and analog phenomena. I often use clocks or thermometers as examples of this in class: Analog phenomena can take on any number of values within certain bounds, whereas digital phenomena are limited to discrete values within those bounds. Thus, an analog clock technically displays every fraction of a second between two seconds, whereas even the most precise digital clock is going to limit its representation to particular fractions (and same goes with thermometers).