Discovering Computers
A Gateway to Information
Chapter 4
The Components of the System Unit
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Discovering Computers
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Objectives
- Differentiate among various styles
- of system unitsIdentify chips, adapter cards, and other components of a motherboard Describe the components of a processor and how they complete a machine cycle Identify characteristics of various personal computer processors on the market today Define a bit and describe how a series of bits represents data Explain how programs transfer in
- and out of memoryDifferentiate among the various
- types of memoryDescribe the types of expansion slots and adapter cardsExplain the difference among a serial port, a parallel port, a USB port, and other portsDescribe how buses contribute to a
- computer’s processing speedIdentify components in mobile computers
- and mobile devices
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| Objectives Differentiate among various styles of system unitsIdentify chips, adapter cards, and other components of a motherboard Describe the components of a processor and how they complete a machine cycle Identify characteristics of various personal computer processors on the market today Define a bit and describe how a series of bits represents data Explain how programs transfer in and out of memoryDifferentiate among the various types of memoryDescribe the types of expansion slots and adapter cardsExplain the difference among a serial port, a parallel port, a USB port, and other portsDescribe how buses contribute to a computer’s processing speedIdentify components in mobile computers and mobile devices |
The System Unit
What is the system unit?
Case that contains electronic components of the computer used to process data
Sometimes called the the chassis
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The System UnitWhat is the system unit?Case that contains electronic components of the computer used to process data
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The System Unit
What are common components inside the system unit?
ØProcessor
ØMemory
ØAdapter cards
§Sound card
§Modem card
§Video card
§Network card
ØPorts
ØDrive bays
ØPower supply
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The System Unit, What are common components inside the system unit? ØProcessor ØMemory ØAdapter cards §Sound card §Modem card §Video card §Network card ØPorts ØDrive bays ØPower supply |
The System Unit
What is the motherboard?
ØMain circuit board in system unit
ØContains adapter cards, processor chips, and
memory chips
memory chips
ØAlso called system
board
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The System Unit ØMain circuit board in system unit ØContains adapter cards, processor chips, and memory chips memory chips memory chips ØAlso alled system board What is the motherboard? |
The System Unit
What is a chip?
ØSmall piece of semi-conducting material on which integrated
circuits are etched
§Integrated
circuits contain many microscopic pathways capable of carrying electrical
current
ØChips are packaged so they can be attached to a circuit board
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The System UnitWhat is a chip?ØSmall piece of semi-conducting material on which integrated circuits are etched§Integrated circuits contain many microscopic pathways capable of carrying electrical currentØChips are packaged so they can be attached to a circuit board
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