(GPT) scheme in almost all new computers. A GPT can coexist with an MBR in order to provide some limited form of backward compatibility for older systems.

MBRs are not present on non-partitioned media such as floppies, superfloppies or other storage devices configured to behave as such, nor are they necessarily present on drives used in non-PC platforms.

Overview

Support for partitioned media, and thereby the master boot record (MBR), was introduced

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