Which of the following is NOT a numbering system used in computing?

Question

BlackTom AI · Accepted Answer

The question asks which option is NOT a numbering system used in computing, so we will evaluate each choice.
Option 1: Octal. Octal is a base-8 numbering system historically used in computing, especially for representing permissions in Unix-like systems and certain machine-level contexts. This option is a valid computing numbering system, so it is not the correct answer.
Option 2: Decimal. Decimal is base-10 and is the standard human counting system; while computing systems primarily use binary internally, decimal is still widely used in input/output, interfaces, and arithmetic operations. Therefore, decimal is indeed a numbering system used in computing contexts, so it is not the correct answer.
Option 3: Hexadecimal. Hexadecimal is base-16 and is a common shorthand for binary data, memory addresses, and color codes in computing. It is definitely a numbering system used in computing, so this option is not the correct answer.
Option 4: Roman. Roman numerals are a historic numeral system based on combinations of letters from the Latin alphabet. They are not a native or practical numbering system used in computing contexts today, where binary, octal, decimal, and hexadecimal predominate. Consequently, this option describes a numbering system that is not used in computing, making it the correct choice for the prompt.

Which of the following is NOT a numbering system used in computing?单项选择题

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