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GCSE Computer Science · key term
The base-10 number system, using the digits 0–9. It is also called denary.
Used by AQA and Edexcel
Paper 2
Revise: Decimal, Binary, and HexadecimalDecimal, binary and hexadecimal can represent the same numerical values, but they use different digits and place values.
A base-10 number system that uses the digits 0–9; also called denary.
State the number base clearly: 10 in hexadecimal has the value 16 in decimal.
When converting decimal to binary, use a column if the remaining value is greater than or equal to its heading. Equality matters: decimal 32 needs a 1 in the 32 column.
Check your answer by converting it back. A binary whole number ending in 1 must give an odd decimal value; one ending in 0 must give an even value.
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A base-10 number system using the digits 0–9; also called denary.
The base-10 number system, using the digits 0–9.
Specification 2.1.1 · Paper 1
A base-10 number system that uses the digits 0–9; also called denary.
Revise: Binary Representation and StatesDecimal, also called denary, is the familiar base-10 system. Binary is base 2, while hexadecimal is base 16.
