BYOD (Bring your own device) - Employee owned devices which are brought onto the corporate network either though granting access by username/passowrd, tokens, or applications
Coporate Owned, Business Only (COBO) - Device is owned by the company and only has access to company resources.
Corpoerate Owned, personally enababled (COPE) - Device is owned by the company and has less restrictions towards what resources can be accessed with the device.
Chose your own device - Employee has the choice of a device from a strict (approved) list.