| Subject | English | Spanish |
| comp., MS | master boot record | registro de arranque maestro (The first sector on a hard disk, which begins the process of starting the computer. The MBR contains the partition table for the disk and a small amount of executable code called the master boot code) |
| IT | Master Boot Record | registro maestro de arranque |
| gen. | master boot record | registro maestro de arranque |
| commun., IT | master record | grabación original |
| tech. | master stock record | fichero general de existencias |