ディスクオペレーティングシステムでした
disukuoperētingushisutemudeshita
1. Was disk operating system.
Noun
#2737643
1. Was disk operating system.
1. system
1. pupil; disciple
1. deci-; 10^-1
1. disk; disc
2. disk (storage); disc
1. hard disk (drive); hard drive
1. becoming a pupil (of); becoming an apprentice
1. systems
1. automatic lock
2. automatic door-locking system
1. floppy (disk)