U+0081
| Nom | Octet supérieur prédéfini |
| Codage | U+0081 |
| Code HTML |   |
| Code CSS | \0081 |
| Bloc | Supplément latin-1 |
| Version | 1.1 (1993) |
| Age | 1.1 |
| En miroir | No |
| Bidi Paired Bracket Type | None |
| Composition Exclusion | No |
| Case Folding | 0081 |
| Simple Case Folding | 0081 |
Codage
| Codage | hex | dec(bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | C2 81 | 194 129 | 49793 | 11000010 10000001 |
| UTF-16BE | 00 81 | 0 129 | 129 | 00000000 10000001 |
| UTF-16LE | 81 00 | 129 0 | 33024 | 10000001 00000000 |
| UTF-32BE | 00 00 00 81 | 0 0 0 129 | 129 | 00000000 00000000 00000000 10000001 |
| UTF-32LE | 81 00 00 00 | 129 0 0 0 | 2164260864 | 10000001 00000000 00000000 00000000 |