A field is a unit of data that can store one or more characters, such as a name, a date, or a number. Fields are used to organize and store data in databases, spreadsheets, and other applications. A byte is a unit of digital information that consists of eight bits, which are binary digits that can have two values: 0 or 1. An octet is another term for a byte, especially in the context of network protocols and data transmission. A decimal is a number system that uses ten symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Decimals can also have a decimal point to represent fractions, such as 3.14 or 0.25. References: Certified IT Manager (CITM) Course Outline, Grouping Symbols and Order of Operations, A group of characters is called as a