A clone is a copy of a physical entity, such as a file or an image, that is made by a software application or a computer program. In digital data terms, a clone is a copy of a file or data structure that is stored in a particular location in the memory of a computer or in a physical storage device, such as a disk drive.

A clone can be created by copying a file from one location to another. In this way, the data is copied and the new location becomes the exact copy of the old one.

A clone is a very useful concept that can be applied to many different situations. For example, when a user has two accounts in a social network and wants to switch from one account to another, or if a user has two phones and wants to transfer data from one phone to the other. In these cases, a clone can be used to keep the data of each account separately.