What is a hard disk partition

Partition is a physical division of hard disk storage space. To make it simple, imagine a large room, divide that room into two or more rooms by putting walls in between. In hard disk, each room is called a partition, each partition can be formatted into any file system and can store any information, and each will logically act as different hard disk. If you partition your hard disk, it will look as if you have more than one hard disk installed in your unit.