Definitions for "Boot sector"
Keywords:  sector, loader, floppy, partition, bios
Reserved sectors on disk that are used to load the operating system. On start-up, the computer looks for the master book record (MBR), which is typically the first sector in the first partition of the disk. The MBR contains pointers to the first sector of the partition that contains the operating system, and that sector contains the instructions that cause the computer to "boot" the operating system (from the phrase "pulling yourself up from your bootstraps").
The very first sector on a hard drive. It contains the codes necessary for the computer to start up. It also contains the partition table, which describes how the hard drive is organized. Also called the Master Boot Record.
sector on a disk containing information on how disk is organised - may contain a small boot program
data on the harddisk with startup instructions
Keywords:  record, see
( Boot Record)
See Boot Record.