What is Data & Representation?
All computer data is ultimately represented in binary—sequences of 0s and 1s. Understanding how data is stored, encoded, compressed, and encrypted helps you grasp how computers actually work. This foundation is essential for understanding digital information and cybersecurity.
In this area, you'll explore binary and hexadecimal number systems, data types, compression techniques, and encryption. These topics explain the language computers use and how digital information is protected.