Final answer:
The maximum number of partitions in a master boot record (MBR) is 4. MBR has a partition table with four slots, setting this limit. GPT is a newer system that allows more partitions.
Step-by-step explanation:
The maximum number of partitions that can be created inside a master boot record (MBR) is 4. This limitation arises from the structure of the MBR, which contains a partition table with four slots, each defining a single partition. MBR is an older system that has been largely superseded by the GUID Partition Table (GPT), which doesn't have this limitation and allows for a much larger number of partitions.