The smallest unit of information handled by a computer or device. One bit expresses a 1 or a 0 in a binary numeral, or a true or false logical condition. A group of 8 bits makes up a byte, which can represent many types of information, such as a letter of the alphabet, a decimal digit, or other character.
— Computer ScienceThe smallest unit of information in a computer, can either equal 0 or 1. Eight bits equal one- byte.
— Computer Science