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Questions about Positional notation

Short answers, pulled from the story.

What was the first positional numeral system to be developed?

The Babylonian numeral system, base 60, was the first positional system to be developed. This ancient method influenced how time and angles are counted today.

When did Archimedes invent a decimal positional system based on 10^8 in his Sand Reckoner?

Archimedes invented a decimal positional system based on 10^8 in his Sand Reckoner around 287 BC to 212 BC. He used powers of ten to count grains of sand.

Which numeral systems were commonly used before positional notation became standard?

Roman numerals and Chinese numerals relied on sign-value notation before positional notation arrived. Accountants used abacuses or stone counters for arithmetic until positional notation arrived.

How does the binary base-2 octal base-8 and hexadecimal base-16 bases function in computing?

Computers deal only with sequences of conventional zeroes and ones because it is easier to deal with powers of two. The hexadecimal system serves as shorthand for binary where every 4 binary bits relate to one and only one hexadecimal digit.

Why have Base-12 systems called duodecimal or dozenal been popular historically?

Base-12 systems called duodecimal or dozenal have been popular because multiplication and division are easier than in base-10. Twelve has many factors including one two three four and six.

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