What is defined as a group of bits forming a word?

A byte is indeed defined as a group of bits forming a word, typically consisting of 8 bits. In computing terminology, a byte serves as a basic unit of data and is widely used to represent a single character, such as a letter or number, in a computer system.

The concept of a word in computer architecture refers to the number of bits processed by the processor and can vary depending on the architecture but is often made up of multiple bytes. In this case, a byte is the most relevant choice as it emphasizes the structure and organization of bits into a cohesive unit that can be manipulated or understood collectively.

Understanding that a byte aggregates bits allows for a clearer grasp of data representation and manipulation in digital systems, and this foundational knowledge is critical for subjects like data transmission, computer programming, and networking.