| Subject | English | Hindi |
| comp., MS | Microsoft Disk Operating System | Microsoft डिस्क ऑपरेटिंग सिस्टम (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 | MS-DOS operating system | MS-DOS ऑपरेटिंग सिस्टम (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 | operating system | ऑपरेटिंग सिस्टम (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) |