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→Decimal / Binary / Octal / Hexadecimal Numbering Systems
===Decimal / Binary / Octal / Hexadecimal Numbering Systems===
[[Image:decimal-number-2.png|thumb|right|300px|The '''decimal''' numbering system .<br>Licensed Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc] (modified by author).]]
''Decimal Numbers''
According to the diagram to the right, each digit moving to the left of units value is the placeholder multiplied to the power of ten. Units are ten to the power of zero (which is 1), tens are ten to the power of one, etc.
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[[Image:binary-number-3.png|thumb|right|200px|The '''binary''' numbering system.<br>Licensed Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc].]]
''Binary Numbers''
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''Octal / Hexadecimal Numbers''
<table align="right"><tr valign="top"><td>[[Image:octal-number-2.png|thumb|right|200px|The '''octal''' numbering system .<br>Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc].]]</td><td>[[Image:hex-number-2.png|thumb|right|420px|The '''hexadecimal''' numbering system .<br>Image licensed under [https://creativecommons.org/licenses/by-sa/3.0/ cc].]]</td></tr></table>
The '''octal''' and ''hexadecimal'' numbering systems are represented by values of 0 - 7 and 0 - F respectively. For hexadecimal numbers, values for 10 to 15 (which can only be represented by a single digit) use letters a to f respectively.
