Question

Explain device management in unix operating system

Answer 1

Device management inside the PC and activating and controlling the peripherals.  

In desktop computer the OS interacts with the device drivers for controlling of peripherals.  

Small embedded systems the device management scheduled could be included inside the OS.

Hardware devices generally provide the capacity to input data inside the computer or output data from  computer.  

Simplify the capacity to support a variety of hardware devices, standardized application programming interfaces are required.

Answer 2

Device management in UNIX operating system:

• In the Unix operating system, device management has been split into input devices and output devices. But, everything takes place through the kernel. And, Kernel is the core of the Unix operating system, that relates directly to the hardware, and that runs in privileged memory space.
• Basically, it schedule processes, manage memory, control access to files and hardware devices such as via device controllers - drivers - and interrupts.
• The kernel is accessed by system calls, which are functions provided by the kernel; these functions are made available to applications by C system libraries.  

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