This document is an introduction to basic computer parts and how they work written by Nehal Parvez. It defines common computer components like the monitor, CPU, disk drives, flash drive, RAM, and ROM. It explains how input devices like the keyboard and mouse are used to enter information and how output devices like printers and speakers are used to produce output. It provides a high-level overview of how computers process information using the CPU and memory components. The author's goal is to spread computer knowledge to more people.