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Home » Dictionary » Storage

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Numeric

MBR
Author: Gabriel Torres Last Updated: November 17, 2005
Category: Storage

Master Boot Record

Name of the very first sector on a hard disk drive. Is where the partition table is stored.

MBR is read by BIOS, which decodes the partition table and then loads a program called "bootstrap" from the boot sector of the partition that will boot; this program is responsible for loading the operating system.

The MBR and the partition table use only one sector for the first hard disk drive track. The other sectors remain available and are not used. Some virus, called boot virus, store themselves on these empty sectors.

Floppy disks, Zip-disks and CD-ROMs don't have MBR or partition table. These features only exist on hard disk drives.

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