What is MBR in OS?
MBR stands for Master Boot Record. It is a partition on our computer (usually HDD or SSD) used to store data. It contains important information for installing the operating system and locating the storage partition. This term refers to the first sector of storage. MBR contains information about hard drive partitions. It also includes programs that show you how to install the operating system. It uses a 32-bit logical block address and allocates 512 bytes per partition. This limits its capacity to a maximum of 2 TB (terabytes).
Partitioning Scheme: MBR and GPT in OS
The partition table tells the operating system how the partitions and files on the disk are organized. MBR stands for Master Boot Record, which is a special place at the start of the drive that contains information on how to partition it.
The MBR also contains the code that starts the operating system, sometimes called the boot loader. GPT stores information about how all partitions are organized and how the operating system is displayed on all drives.