| Subject | English | German |
| telecom. | Bell Laboratories' operating system for mini- and microcomputers | Betriebssystem von Bell Lab (16 bit Prozessor) |
| patents. | computer operating system software | Betriebssystemsoftware für Computer |
| phys. | disk operating system DOS | Betriebssystem |
| comp., MS | guest operating system profile | Gastbetriebssystem-Profil (A library resource containing the most common settings from a Sysprep.inf file, including the computer name and domain or workgroup settings, which can be applied to a virtual machine template) |
| telecom. | mini- and microcomputer operating system similar to UNIX | Betriebssystem von Microsoft Inc. n |
| IT | operating system certification | Zertifizierung des Betriebssystems |
| IT | operating system certification | Betriebssystemzertifizierung |
| IT | operating system components | Bestandteile des Betriebssystems |
| comp., MS | operating system deployment | Betriebssystembereitstellung (A Configuration Manager feature that allows you to create operating system images and deploy those images to target computers) |
| comp., MS | Operating System Deployment Manager | Betriebssystembereitstellungs-Manager (A security role that grants permissions to administrative users so that they can create, deploy, and manage operating system images) |
| comp. | operating system nucleus | Betriebssystemkern |
| IT | operating system performance | Leistungsfähigkeit des Betriebssystems |
| IT | operating system security flaw | Sicherheitsschwachstelle |
| IT | operating system security flaw | Schwachstelle im Betriebssystem |
| IT | operating system version | Version des Betriebssystems |
| IT, dat.proc. | Operating System/Virtual Storage | OS/VS |
| comp., MS | operating system volume | Betriebssystemvolume (A volume that contains an operating system (for example, Windows Vista) that can be loaded by Windows Boot Manager. A given system can have multiple operating system volumes. The operating system on the current volume can be started only if it has an entry in the Boot Configuration Data (BCD)) |
| IT | operating system vulnerability | Verletzbarkeit des Betriebssystems |