Org1 - Computer Organization Minas E. Spetsakis Computer...

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Computer Organization Minas E. Spetsakis
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Computer Organization Course and Notes based on Computer Organization and Design By Petterson and Hennessy
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What is a Computer? Definition changes over time Used to be a big piece of hardware in the basement of a government building Or a device under your desk Now it is in our pocket, inside our cars, etc.
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What are the Components? Case Display Lots of cable
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What is Inside the Box? Motherboard Where the CPU, memory, graphics etc are Disk(s) CD/DVD PSU (Power Supply Unit) Cooling devices
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Motherboard Diagram The motherboard carries all the critical components and their interconnections
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How a Motherboard Looks CPU socket, integrated graphics chip, PCI x 3, PCIexpress, memory DIMM sockets, IDE, SATA, ethernet chip, RTC, Southbridge From Wikipedia
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Inside the CPU CPU executes machine level instructions Every click or mouse movement generates ”events” An event is examined by the software and delivered to the appropriate application. The software has to to find what applications should receive it, how it should be converted, etc The software can have many layers (window server, window manager, wine etc)
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Software, what's that? Software can be in many different states:
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Org1 - Computer Organization Minas E. Spetsakis Computer...

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