December 2019
Beginner
510 pages
12h 7m
English
Content preview from Networking Fundamentals
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Hexadecimal numbering
The hexadecimal numbering system is also known as base-16. What confuses a lot of people is that it hexadecimal numbers also include letters. Yes, you read that correctly. There are letters in there, but we actually refer to them as symbols. Hexadecimal uses the numbers 0-9 and symbols A-F to represent any decimal number that we wish to throw at it. Counting up to and including 15 is relatively straightforward; 0-9 is represented by 0-9 as usual, but 10-15 are represented by symbols, so we would get the following:
| Decimal | Hexadecimal |
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | A |
| 11 | B |
| 12 | C |
| 13 | D |
| 14 | E |
| 15 | F |
When we want to count over 16, we need to combine the characters to continue. ...
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