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| English | Tamil |
| MS-DOS operating system | MS-DOS இயக்க முறைமை (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) |
| operating system | இயக்க முறைமை (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) |