decimalDecimal is a term that describes the base-10 number system, probably the most commonly used number system. The decimal number system consists of ten single- digit numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. The number after 9 is 10. The number after 19 is 20 and so forth. Additional powers of 10 require the addition of another positional digit. In computing, the binary , octal , or hexadecimal number system may be used instead of the decimal system. All these schemes have a number of digits that is a power of 2. This is an advantage in systems that use high and low digital states. | Decimal | Binary | Octal | Hexadecimal |
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| 0 | 0 | 0 | 0 | | 1 | 1 | 1 | 1 | | 2 | 10 | 2 | 2 | | 3 | 11 | 3 | 3 | | 4 | 100 | 4 | 4 | | 5 | 101 | 5 | 5 | | 6 | 110 | 6 | 6 | | 7 | 111 | 7 | 7 | | 8 | 1000 | 10 | 8 | | 9 | 1001 | 11 | 9 | | 10 | 1010 | 12 | A | | 11 | 1011 | 13 | B | | 12 | 1100 | 14 | C | | 13 | 1101 | 15 | D | | 14 | 1110 | 16 | E | | 15 | 1111 | 17 | F | | 16 | 10000 | 20 | 10 | | 17 | 10001 | 21 | 11 | | etc | etc | etc | etc |
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| Last updated on:
Sep 21, 2005 |
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