| Subject | Basque | English |
| comp., MS | Mac sistema eragile | Mac OS (The name given to the Macintosh operating system, beginning with version 7.5 in September 1994, when Apple started licensing the software to other computer manufacturers) |
| comp., MS | MS-DOS sistema eragile | MS-DOS operating system (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 | sistema eragile | operating system (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) |