A model is system or thing used as an example to follow or imitate. It can be a fashion sense that one is yearning to copy, or just something as a simple letter. Anything can be modeled; it just takes experience with trial and error. Once you’ve found the modeling agent, then learn the environment, and become familiar with the agent. This requires cheap effective, automatic message-routing strategies. A model can collect relationships. For example, things that always happen are the deductive info, as opposed to what tends to happen; or the induction. It’s all based around a relation of symbols and objects and rules etc. Many attempts to copy the modeling system were first designed by Fibonacci. His model starts out with the letter B, where B= A, and A= BA. Then each sequence is assigned a number where the length of the string is the Fibonacci sequence. To understand the world deeper, you must build a model in scientific terms, as it says to reduce apparent complexity to a set of simpler rules. Better yet known as a theory. A theory is a prediction that has to be tested and experimented with through trial and error. An accurate model requires different angles and different perspectives. You look at not just the explicit and obvious details, but also the implicit deeper angles. Modeling can also be used for tracking users. Not only just the typical users but the classes and subclasses of users as well. The four symbols I used today during the lab were: cd (change directory), cal (calender), date (show the date and time), and exit (to log off). The only noticeable difference between DOS and UNIX is DOS uses all caps. Windows does not use commands and is based by clicking the mouse on separate commands. For example to delete a file you would just have to right click and select delete.