Which numeral system uses two symbols, 0 and 1?

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Multiple Choice

Which numeral system uses two symbols, 0 and 1?

Explanation:
Binary is the base-2 numeral system, meaning each digit represents a power of two and only two symbols are used: 0 and 1. This two-symbol setup is what defines binary, which is also the fundamental way computers encode data as bits (on/off). Other common systems use more symbols: decimal uses ten digits (0–9), octal uses eight (0–7), and hexadecimal uses sixteen (0–9 and A–F). Because the question specifies a two-symbol system, the binary option is the correct one.

Binary is the base-2 numeral system, meaning each digit represents a power of two and only two symbols are used: 0 and 1. This two-symbol setup is what defines binary, which is also the fundamental way computers encode data as bits (on/off). Other common systems use more symbols: decimal uses ten digits (0–9), octal uses eight (0–7), and hexadecimal uses sixteen (0–9 and A–F). Because the question specifies a two-symbol system, the binary option is the correct one.

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