Definition:
- MBR boot sector contains
- Boot Loader that loads the operating system into memory.
- and a partition table contains the operating systems and device drivers
- MBR determines what sectors are available to each partition, as well as which partitions are bootable and which are not.
- Limits:
- maximum storage space is two terabytes
- maximum 4 primary partitions
- boot data is stored in only 1 sector