part2 - CS354: Operating Systems Spring 2012 Dongyan Xu...

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1 CS354: Operating Systems Spring 2012 Dongyan Xu Department of Computer Science Purdue University
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2 Acknowledgement The following people for sharing their slides: Prof. Peter Chen (U. Michigan) Prof. Sam King (UIUC) Prof. Klara Nahrstedt (UIUC) Prof. Gustavo Rodriguez-Rivera (Purdue)
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3 A Typical Computer from a Hardware Point of View CPU Chipset Memory I/O bus CPU . . . Network
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4 North Bridge chip South Bridge chip Modem Sound card Hard disks CD-ROM Video card Memory CPU AGP port PCI bus PCI slots IDE controller Serial, parallel and USB ports
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5 Typical Computer System Operating System Software Programs and data Memory CPU CPU . . . OS Apps Data Network
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6 Processors Each CPU has a specific set of instructions All CPUs contain General registers inside to hold key variables and temporary results Special registers visible to the programmer Program counter contains the memory address of the next instruction to be fetched Stack pointer points to the top of the current stack in memory Control registers
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part2 - CS354: Operating Systems Spring 2012 Dongyan Xu...

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