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Example
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Can
represent long binary values using shorter hex
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notation
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1011
0110 0010 1101 16 digit binary value (base 2)
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B 6 2 D 4 digit hex value (base 16)
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How
can we describe abstract information
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relevant
to a system’s objectives using binary
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values?
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Examples:
integers, characters, real numbers,
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colours,
dates, graphics....
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Must
encode information into binary values
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Standard
schemes often used, but programmers
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must
sometimes invent their own schemes
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Standard
formats for data encoding
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Unsigned
integers (counting integers), signed
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integers,
real numbers, characters
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