Command Line Prep: Master These 5 Core Computer Concepts First

If you are new to computing and about to use the command line for the very first time, you will need to learn several foundational computer concepts alongside basic command-line operations. Seasoned computer professionals and researchers may skip this article entirely. However, if you lack a clear understanding of these fundamental terms, this guide will prove extremely valuable for your learning journey.

This article explains these essential concepts from the perspective of someone with no prior technical background. Explanations avoid overly formal jargon and lean toward conversational, everyday phrasing. This conversational approach makes the content vivid, straightforward and much easier for beginners to comprehend.
The five core concepts covered in this guide are listed below:
  1. File system
  2. Directories, current working directory, and root directory
  3. File paths
  4. Relative paths and absolute paths
  5. Commands and the command line