Internal representation of numeric values in a digital computer
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A computer number format is the internal representation of numeric values in digital device hardware and software, such as in programmable computers and calculators.[1] Numerical values are stored as groupings of bits, such as bytes and words. The encoding between numerical values and bit patterns is chosen for convenience of the operation of the computer;[citation needed] the encoding used by the computer's instruction set generally requires conversion for external use, such as for printing and display. Different types of processors may have different internal representations of numerical values and different conventions are used for integer and real numbers. Most calculations are carried out with number formats that fit into a processor register, but some software systems allow representation of arbitrarily large numbers using multiple words of memory.
^Jon Stokes (2007). Inside the machine: an illustrated introduction to microprocessors and computer architecture. No Starch Press. p. 66. ISBN 978-1-59327-104-6.
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