| Subject | English | German |
| tech. | octal number system | Oktalsystem |
| tech. | octal number system | Oktalcode |
| IT | octal numeration system | Oktalzahlensystem |
| comp. | octal number system | Oktalzahlensystem |
| IT | octal system | Oktal zahlensystem |
| comp. | octal number system | Oktalsystem |