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Dictionary of Computers - octal number system
octal number system
Number system to the base eight, used in computing. The highest digit that can appear in the octal system is seven. Whereas normal decimal, or base-ten, numbers may be considered to be written under column headings based on the number ten, octal, or base-eight, numbers can be thought of as written under column headings based on the number eight. The octal number 567 is therefore equivalent to the decimal number 375, since (5 × 64) + (6 × 8) + (7 × 1) = 375.
The octal number system is sometimes used by computer programmers as an alternative to the hexadecimal number system.
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