What are binary numbers primarily used for?

Binary numbers are primarily used in computer systems because all digital data and processing are based on the binary numeral system, which uses only two symbols, typically 0 and 1. This system aligns perfectly with the electronic nature of computer circuits, which operate on two states: on (1) and off (0).

In the context of computer systems, binary numbers represent various forms of data, including instructions for processing, memory addresses, and numerical values. Computers ultimately interpret all information in binary format, which is crucial for executing operations and communicating within hardware components.

Although binary numbers can be involved in the processes relevant to the other options, such as encoding images and supporting data encryption methodologies, their foundational role and primary application lie specifically within the structure and function of computer systems. This has made binary the dominant language of computing technology.