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4.5 Fundamentals of data representation - Coggle Diagram
4.5 Fundamentals of data representation
4.5.1 Number systems
4.5.1.1 Natural numbers
4.5.1.2 Integer numbers
4.5.1.3 Rational numbers
4.5.1.4 Irrational numbers
4.5.1.5 Real numbers
4.5.1.6 Ordinal numbers
4.5.1.7 Counting and measurement
4.5.2 Number bases
decimal (base 10)
binary (base 2
hexadecimal
(base 16)
shorthand for binary
conversion between bases
4.5.3 Units of information
4.5.3.1 Bits and bytes
4.5.3.2 Units
4.5.4 Binary
number
system
4.5.4.1 Unsigned binary
4.5.4.2 Unsigned
binary arithmetic
4.5.4.3 Signed binary
using two’s complement
4.5.4.4 Numbers with
a fractional part
4.5.4.5 Rounding errors
4.5.4.6 Absolute and
relative errors
4.5.4.7 Range and precision
4.5.4.8 Normalisation of
floating point form
4.5.4.9 Underflow
and overflow
4.5.5 Information coding systems
4.5.5.1 Character form of a decimal digit
4.5.5.2 ASCII and Unicode
4.5.5.3 Error checking and correction
4.5.6 Representing images,
sound and other data
4.5.6.1 Bit patterns,
images,
sound
and other data
4.5.6.2 Analogue and digital
4.5.6.3 Analogue/digital conversion
4.5.6.4 Bitmapped graphics
4.5.6.5 Vector graphics
4.5.6.6 Vector graphics
versus
bitmapped graphics
4.5.6.7 Digital representation of sound
4.5.6.8 Musical Instrument Digital Interface (MIDI)
4.5.6.9 Data compression
4.5.6.10 Encryption