each of the devices

以下は、IBMの明細書から。

This examination is preferably achieved through the use of a control block which identifies each of the logical devices and its corresponding operational state.
US Pat. 4403288

In a paging and swapping peripheral storage system 10, each of the devices 16-18 is provided with a plurality of logical device addresses, i.e. device D0 for example can be addressed by any one of four addresses.
US Pat. 4583166

Accordingly, each of the devices 12 includes command and address decode circuits 106, which either can be electrical circuits or can be programmed within device microprocessor 70.
US Pat. 4813011

In response to signals from each of the devices specifying their angular position at a particular time, the controller calculates the relative angular positions of the devices and issues a signal to each of the devices specifying the amount and direction of change in rotational velocity required to achieve synchronization.
US Pat. 5598303