\documentclass[12pt]{article} \title{Unit 0: Introduction} \author{Nicolás A. Ortega Froysa} \begin{document} \maketitle \section{Numbering Systems} Generally we will work in 4 numbering systems: \begin{itemize} \item Decimal (base 10): notation $x_{10}$ \item Binary (base 2): notation $x_{2}$ \item Octal (base 8): notation $x_{8}$ \item Hexadecimal (base 16): notation $x_{16}$ \end{itemize} The \textbf{binary} system is used for computers since digital/electronic signals can only be on (1) or off (0). \end{document}