Common Uses
- Intel's GUID Partition Table, or GPT, a system for partitioning hard drives.
- Microsoft Windows uses GUIDs internally to identify the classes and interfaces of COM objects. A script can activate a specific class or object without having to know the name or location of the dynamic linked library that contains it.
- ActiveX, a system for downloading and installing controls in a web browser, uses GUIDs to uniquely identify each control.
- JT files use a partitioning into 4+2+2+8*1 bytes to represent nodes in the data structure and segment ID's.
- Second Life uses GUIDs for identification of all assets in its world.
- Database developers and administrators often use GUIDs as primary keys for database tables to ensure uniqueness between databases.
Read more about this topic: Globally Unique Identifier
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