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Itr3 lecture 3: the motherboard

Itr3 lecture 3: the motherboard. Thomas Krichel 2002-10-01. Structure. Like a jackson pollock painting. Literature. Norton “new inside the PC” chapter 5. Opening a PC. Voltages used in the PC are 3 to 5 V Be aware of static electricity, touch first Unpainted part of case Power supply

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Itr3 lecture 3: the motherboard

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  1. Itr3 lecture 3: the motherboard Thomas Krichel 2002-10-01

  2. Structure • Like a jackson pollock painting.

  3. Literature • Norton “new inside the PC” chapter 5

  4. Opening a PC • Voltages used in the PC are 3 to 5 V • Be aware of static electricity, touch first • Unpainted part of case • Power supply • Keep power cable plugged in a grounded socket • Never open sealed part of the power supply

  5. Basic parts of a PC • Display • Input • Keyboard • Mouse etc • System Unit • Logic system • Display system • Storage system • Input output system • Communication system

  6. Logic system • Motherboard green plastic sheet with traces and slots, usually complying to a standard called “plug and play” • Jumpers can set key features • CMOS or flash memory • Powered by battery • holds the Basic Input Output System • Central Processing Unit socket • Main memory socket • Bus (set of all other slots)

  7. Other components • The display system • Video card • Storage system • Hard disk • Floppy disk • CD-rom • CD-R • CD-RW

  8. Other components • Keyboard and mouse • Parallel port • Parallel because it can move a whole byte at a time • Mainly used for connection to a printer • Nowadays it can handle bidirectional traffic, but not practical for non-printer devices • Serial port • One bit at a time -- Uses thin cable • Slow -- inexpensive • Universal serial bus (USB) or IEEE 1394.

  9. Other components • Modems, allow communication over a phone line • Internal modems with own serial device • External modem • It squeaks • Network interfaces

  10. Organized working • Track parts taken out • Be careful to align ribbon cables properly • Check it is not put the other way round • Check that the alignment is correct • Be careful with shorting jumpers • Do not short the wrong thing

  11. Slots and sockets • Integrated Drive Electronics • Dual in-line memory modules (DIMM) • Cable connectors • Chipset sockets • Industry standard architecture, ISA, since 1984 AD, 16 bit at a time • Peripheral component interconnect, PCI, 32 bit at a time • Advanced graphics processor, AGP

  12. http://openlib.org/home/krichel Thank you for your attention!

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