How many bits are in a byte?

A byte consists of eight bits. This is a fundamental concept in computer science and digital communications, as bytes are the basic units of data used to represent a character, such as a letter or number, in computing systems. The historical context behind the designation of eight bits in a byte is tied to how computer memory is structured, where eight bits can represent 256 different values (from 0 to 255), making it sufficient to encode standard character sets like ASCII.

In contrast, the other choices do not accurately represent the standard definition of a byte. Four bits correspond to a nibble, which is a smaller unit of data and not a byte. Six bits and ten bits do not align with the accepted definition of a byte either, as they do not encapsulate the standard binary configurations used in most computer architectures. Therefore, a byte, defined as eight bits, remains a critical component of data representation and storage in both hardware and software systems.