The term COMPUTING UNIT can be broken down into two parts: BYTE (4 letters) and the rest. BYTE is a unit of digital information that typically consists of eight bits, or binary digits. It is the smallest unit of memory in most computer systems and is used to store a single character, such as a letter, number, or symbol. The rest of the term COMPUTING UNIT refers to any device or system that is capable of performing calculations and processing data. This includes computers, smartphones, tablets, and other electronic devices.