Khan Academy AP CSP Vocab Big Idea 2 - Data
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Last updated 3:00 PM on 5/7/25
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7 Terms
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Bit
A binary digit, either 0 or a 1
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Byte
A sequence of 8 bits
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Round-off error
Error that results when the number of bits is not enough to represent the number with full precision (like using 3 digits to represent pi as 3.14)
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Analog data
Values that change smoothly, rather than in discrete intervals, over time
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Lossless compression
Compressing data in a way that preserves all data away and allows full recovery of the original
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Lossy compression
Compressing data in a way that discards some data and makes it impossible to recover the original
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Metadata
Data about data, like descriptive information about a file or a row in a database
Note 
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