| Subject | English | Japanese |
| comp., MS | master boot code | マスター ブート コード (A small amount of executable code contained in the master boot record that scans the partition table for the active partition, finds the starting sector of the active partition, loads a copy of the boot sector from the active partition into memory, and transfers control to the executable code in the boot sector) |
| gen. | n master code | マスター・コード |
| gen. | n master code | マスターコード |