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GCSE Computer Science · key term
A single item of text, such as a letter, digit, punctuation mark or space.
Used by OCR
Paper 1, Paper 2
Revise: Binary Character RepresentationText is made up of characters: individual letters, digits, punctuation marks and spaces. Upper-case
Aand lower-caseaare different characters. Text can also contain special characters, such as a new line.
A data type representing one symbol, such as a letter, digit or punctuation mark. Python represents character data using a string of length one.
When explaining character representation, state that each character is assigned a unique binary code within the character set being used.
Upper-case and lower-case letters are different characters, so they have different codes.
Do not assume that every character always takes one byte: this depends on the encoding. The ASCII examples here use one byte per character.
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