| Subject | English | Korean |
| comp., MS | bad sector | 불량 섹터 (A disk sector that cannot be used for data storage, usually because of media damage or imperfections. Finding, marking, and avoiding bad sectors on a disk is one of the many tasks performed by a computer's operating system. A disk-formatting utility can also find and mark the bad sectors on a disk) |
| comp., MS | boot sector | 부팅 섹터 (A critical disk structure for starting your computer, located at sector 1 of each volume or floppy disk. It contains executable code and data that is required by the code, including information used by the file system to access the volume. The boot sector is created when your format the volume) |
| comp., MS | end-of-sector marker | 섹터 끝 표식 (A two-byte data structure written at the end of the boot sector after the bootstrap code. Used by the bootstrap loader to determine that the end of boot sector has been reached) |
| comp., MS | partition boot sector | 파티션 부팅 섹터 (A portion of a hard disk partition that contains information about the disk's file system and a short machine language program that loads the Windows operating system) |
| comp., MS | sector-based imaging | 섹터 기반 이미징 (When creating a Windows image, the process of capturing every non-blank sector into a physical file. This is not the process used by ImageX) |
| stat. | sector chart | 원도표 |
| stat. | sector chart | 원그림 |
| math. | sector chart | 원도표, 원그림 |