There are some devices that are shared and used, such as magnetic tape, hard disks, printers, etc. Shared access can reduce the cost of your system maintenance.
What is Shared Device in Operating System?
A shared device is a device that can be shared or allocated between two or more processes at the same time. It is important to note that -
When the same device is shared between two or more processes, the device manager must carefully control the interleaving, and pre-determined policies must resolve all difficulties.
By sharing devices, there is no need to install separate devices for each user and system. The same device is shared and made available to each user. The most commonly shared device is the printer.
Read Also - What is Buffering and its types
If there are many computers in an office, then instead of using a separate printer for each, by installing a printer, it can be shared and made available to all and reduce the cost of the system.
There are many processes in it that read the disk at the same time. This feature proves to be very useful in multiple-user operating systems (server operating systems).
Because whenever the server operating system is being used, many client systems are connected to it, so shared devices are used to organize the work of all the clients in one place. Various processes can be scheduled in the shared device.
Example of Shared Device in Operating System:
The best examples of shared devices are HDDs or SDDs, tape silos, optical jukeboxes, etc.
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