What is the digital method of representing characters using zeros and ones called?

The digital method of representing characters using zeros and ones is referred to as the binary system. In this context, binary notation comprises only two symbols: 0 and 1. It is the fundamental language of computers as they operate using only two states, which can be represented by these two digits. Each character, whether it be a letter, number, or symbol, is ultimately converted into a binary representation, allowing computers to process and store information efficiently.

While other options listed, such as hexadecimal and decimal, represent numerical systems using different bases, they do not specifically denote character representation. Hexadecimal is base 16 and often used for simplifying binary representation, while decimal is the standard base 10 system used by humans. ASCII, on the other hand, is a character encoding standard that maps binary numbers to specific characters, but it is not itself a method of representation; rather, it uses binary for encoding characters. The binary system is the essential foundation across digital technology for representing data, including characters.