| Subject | English | Italian |
| IT | basic operating system | sistema operativo primario |
| IT | basic operating system | sistema operativo base |
| patents. | computer operating system software | software per sistemi operativi di elaboratori elettronici |
| patents. | computer operating systems | sistemi operativi per computer |
| earth.sc. | deep ocean operating system | sistema per il telerilevamento di dati oceanografici a grandi profondità |
| IT, dat.proc. | disc operating system | sistema operativo di interfaccia a disco |
| IT, el. | Disk Operating System | sistema operativo per dischi |
| IT, el. | disk operating system | disk operating system |
| IT, el. | Disk Operating System | disk operating system |
| IT | disk-operating system | sitema operativo per dischi |
| IT | Disk Operating System | sistema operativo su disco |
| IT, el. | disk operating system | sistema operativo per dischi |
| comp., MS | disk operating system | Disk Operating System (A generic term describing any operating system that is loaded from disk devices when the system is started or rebooted) |
| IT | disk operating system directory | directory del sistema operativo |
| mech.eng. | door operating system | comando di porta |
| comp., MS | guest operating system | sistema operativo guest (The operating system running on a virtual machine) |
| comp., MS | guest operating system profile | profilo del sistema operativo guest (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) |
| comp., MS | host operating system | sistema operativo host (The operating system of the physical computer running the Virtual Server or Virtual PC software) |
| ed., IT | intelligent operating system | sistema operativo intelligente |
| IT, dat.proc. | to load from an operating system | caricare da un sistema operativo |
| IT | management operating system | sistema informativo gestionale |
| comp., MS | Microsoft Disk Operating System | sistema operativo MS-DOS (A Microsoft computer operating system with a command-line interface that is used to control many internal computer functions, such as running programs and organizing and maintaining files) |
| comp., MS | Microsoft Windows operating system | sistema operativo Microsoft Windows (A proprietary software operating system with a graphical user interface (GUI)) |
| comp. | mobile operating system | sistema operativo mobile |
| comp. | mobile operating system | sistema operativo per dispositivi mobili |
| comp. | mobile operating system | piattaforma mobile |
| comp., MS | MS-DOS operating system | sistema operativo MS-DOS (A Microsoft computer operating system with a command-line interface that is used to control many internal computer functions, such as running programs and organizing and maintaining files) |
| IT | network operating system | sistema operativo della rete |
| IT | network operating system | sistema di utilizzazione della rete |
| ed., IT | network operating system | sistema operativo di rete |
| comp., MS | operating system | sistema operativo (The software that controls the allocation and usage of hardware resources such as memory, central processing unit (CPU) time, disk space, and peripheral devices. The operating system is the foundation on which programs are built) |
| IT | Operating System | sistema operativo |
| econ. | operating system | sistema di elaborazione |
| comp., MS | operating system | sistema operativo (The software that controls the allocation and usage of hardware resources such as memory, central processing unit (CPU) time, disk space, and peripheral devices. The operating system is the foundation on which programs are built) |
| IT | operating system components | componenti del sistema operativo |
| comp., MS | operating system deployment | distribuzione del sistema operativo (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 | Gestione distribuzione del sistema operativo (A security role that grants permissions to administrative users so that they can create, deploy, and manage operating system images) |
| IT | operating system performance | prestazione di un sistema operativo |
| IT | operating system version | versione di sistema operativo |
| IT, dat.proc. | Operating System/Virtual Storage | sistema operativo/memoria variabile |
| comp., MS | operating system volume | volume del sistema operativo (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 | vulnerabilità del sistema di elaborazione |
| IT, dat.proc. | operating-system prompt | identificatore del sistema operativo |
| IT, el. | real-time operating system | sistema operativo in tempo reale |
| IT | secure operating system | sistema operativo sicuro |
| IT | supervisory operating system | supervisore |
| IT | supervisory operating system | sistema operativo di supervisione |
| comp., MS | Windows operating system | sistema operativo Windows (A proprietary software operating system with a graphical user interface (GUI)) |