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Device Driver Tutorial
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Solaris Operating System Definition

The Solaris Operating System (Solaris OS) is implemented as an executable file that runs at boot time. The Solaris OS is referred to as the kernel. The kernel contains all of the routines that are necessary for the system to run. Because the kernel is essential for the running of the machine, the kernel runs in a special, protected mode that is called kernel mode. In contrast, user-level applications operate in a restricted mode called user mode that has no access to kernel instructions or to the kernel address space. Device drivers run in kernel mode and are prevented from directly accessing processes in user mode.

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  Published under the terms fo the Public Documentation License Version 1.01. Design by Interspire