MBR (Master Boot Record)

The Master Boot Record (MBR) is the information in the first sector of any hard disk or diskette that identifies how and where an operating system is located so that it can be boot (loaded) into the computer's main storage or random access memory. The Master Boot Record is also sometimes called the "partition sector" or the "master partition table" because it includes a table that locates each partition that the hard disk has been formatted into. In addition to this table, the MBR also includes a program that reads the boot sector record of the partition containing the operating system to be booted into RAM. In turn, that record contains a program that loads the rest of the operating system into RAM.

Master Boot Record (skema partisi)

 

In this partitioning scheme, the partition is divided into three types, namely :

~ Primary Partition or the primary partition, the partition that can be used to perform the operating system boot process and store user data. There were only four pieces only in a single hard disk. If there is an additional partition, then the amount will be reduced to three primary partitions.

~ Extended Partition or additional partitions, the partitions that can accommodate multiple logical partitions. This partition is actually one kind of primary partition. The numbers should only be one piece only.

~ Logical Partition or logical partition, that partition can not be used to make the process of booting the operating system, and can only store user data. Amount is not restricted, meaning that in a single hard disk may have a lot to have its main office logical partition to a single additional partition.