Operating System Architecture

Operating System Architecture - environment and integral....

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When you think of "architecture" you think of buildings. When you put that into the aspect of computers it is a little different. When you talk about architecture in computers it is the order in which particular processes are carried out by the operating system and nothing to do with software flow. The operating system is accountable for the following functions; Device managment Process management Memory management File Systems Inter-process communication The kernel is a processor mode in which programs have extensive access to system information and hardware. After the computer boots up and loads up the kernel, it stars up all processes needed to communicate with the user and environment. Windows 2000 has two layers; user mode and kernel mode. Within the user mode you get 2 subsystems,
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Unformatted text preview: environment and integral. Environment subsystems emulate different operating systems by presenting the API's that the applications expect to be available. Integral subsystems is made up of various subsystems that perform many operating system functions. The kernel mode gains access to the system data and hardware. It is made up of four components; Windows Executive 2000, Device drivers, Microkernel and HAL (Hardware Abstraction Layer). 1 1 A+ Guide to Managing and Maintaining Your PC http://homepages.uel.ac.uk/u0524584/architecture.htm http://www.informit.com/articles/article.aspx?p=21122 http://windows-active-directory.net/MS.Press-MCSE.Training.Kit--Mi/HTML/ch01c.htm...
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This note was uploaded on 02/29/2012 for the course AASISA TB145 taught by Professor ?? during the Winter '12 term at ITT Tech Pittsburgh.

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