Appendix A. ASCII CHARACTER SET
| Binary | Hex | Decimal | Character |
| 0000_0000 | 00 | 0 | NULL |
| 0000_0001 | 01 | 1 | CTRL A |
| 0000_0010 | 02 | 2 | CTRL B |
| 0000_0011 | 03 | 3 | CTRL C |
| 0000_0100 | 04 | 4 | CTRL D |
| 0000_0101 | 05 | 5 | CTRL E |
| 0000_0110 | 06 | 6 | CTRL F |
| 0000_0111 | 07 | 7 | bell |
| 0000_1000 | 08 | 8 | backspace |
| 0000_1001 | 09 | 9 | TAB |
| 0000_1010 | 0A | 10 | line feed |
| 0000_1011 | 0B | 11 | CTRL K |
| 0000_1100 | 0C | 12 | form feed |
| 0000_1101 | 0D | 13 | RETURN |
| 0000_1110 | 0E | 14 | CTRL N |
| 0000_1111 | 0F | 15 | CTRL O |
| 0001_0000 | 10 | 16 | CTRL P |
| 0001_0001 | 11 | 17 | CTRL Q |
| 0001_0010 | 12 | 18 | CTRL R |
| 0001_0011 | 13 | 19 | CTRL S |
| 0001_0100 | 14 | 20 | CTRL T |
| 0001_0101 | 15 | 21 | CTRL U |
| 0001_0110 | 16 | 22 | CTRL V |
| 0001_0111 | 17 | 23 | CTRL W |
| 0001_1000 | 18 | 24 | CTRL X |
| 0001_1001 | 19 | 25 |
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