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The _________ present a uniform device-access interface to the I/O subsystem, much as system calls provide a standard interface between the application and the operating system.

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The _________ present a uniform device-access interface to the I/O subsystem, much as system calls provide a standard interface between the application and the operating system.

(a) Devices

(b) Buses

(c) Device drivers

(d) I/O systems

I have been asked this question in an interview.

My question comes from I/O System topic in portion I/O Systems of Operating System

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Right option is (c) Device drivers

Easiest explanation - None.

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