1 Looking at Computers: Looking at Computers: Understanding the Parts Understanding the Parts and Purpose of computers and Purpose of computers Directions: Save to your folder and put your first name in front of the title in the file name box. After saving press the F5 key to run the show , then click on view speaker notes and use the arrow key to advance the presentation. Then answer the summary questions at the end of the presentation
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1 Looking at Computers: Understanding the Parts and Purpose of computers Directions: Save to your folder and put your first name in front of the title.
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Looking at Computers: Understanding Looking at Computers: Understanding the Partsthe Parts
and Purpose of computers and Purpose of computers
Directions: Save to your folder and put your first name in front of the title in the file name box.
After saving press the F5 key to run the show , then click on view speaker notes and use the arrow key to advance the presentation. Then answer the summary questions at the end of the presentation
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TopicsTopics
• Hardware componentsHardware components
• Input devicesInput devices
• Output devicesOutput devices
• System unit-Central processorSystem unit-Central processor
• ErgonomicsErgonomics
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Computers are Data Computers are Data Processing DevicesProcessing Devices
• Four major functions of a computer:Four major functions of a computer:– Input dataInput data– Process dataProcess data– Output informationOutput information– Store data and informationStore data and information
DATA IN
INFORMATION OUT
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HardwareHardware•System-Processing-Processing unitSystem-Processing-Processing unit
•Peripheral DevicesPeripheral Devices
SystemSystem UnitUnit
PeripheralPeripheral DevicesDevices
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Input DevicesInput Devices
• Devices used to enter information or Devices used to enter information or instructions into the computerinstructions into the computer– KeyboardKeyboard– Mouse / pointing deviceMouse / pointing device– Microphone Microphone – ScannerScanner– Digital cameraDigital camera
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Dvorak KeyboardDvorak Keyboard
• Puts the most commonly used keys at “home keys”Puts the most commonly used keys at “home keys”• Reduces distance of finger stretchesReduces distance of finger stretches
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MouseMouse• Roller ball mouse Roller ball mouse
– Less expensiveLess expensive– Harder to keep cleanHarder to keep clean
• TrackballTrackball– Harder to controlHarder to control– Stationary on deskStationary on desk
• Optical mouseOptical mouse– Needs no mouse padNeeds no mouse pad– Doesn’t need cleaningDoesn’t need cleaning– More expensiveMore expensive
Wireless
Optical
Trackball
Standard
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Other Input DevicesOther Input Devices
• ScannersScanners– TextText– Images Images
• Digital camerasDigital cameras– Images Images – Video Video
– More expensiveMore expensive– Uses far less spaceUses far less space– More energy efficientMore energy efficient– Less viewable from an angleLess viewable from an angle
The back of the system unitThe back of the system unit
• Ports for peripheral devicesPorts for peripheral devices
• Types of ports:Types of ports:– SerialSerial– ParallelParallel– VGAVGA– USBUSB– ConnectivityConnectivity
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Inside the System UnitInside the System Unit
• Essential Essential electronic electronic components used components used to process datato process data
• Types of Types of components:components:– Power supplyPower supply– Hard disk driveHard disk drive– MotherboardMotherboard– CPUCPU– Expansion cardsExpansion cards
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The MotherboardThe Motherboard
• CPUCPU
• RAMRAM
• Expansion Expansion CardsCards
• Chip SetChip Set
• Built-in Built-in componentscomponents
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Storage DevicesStorage Devices
• Enables the storage of data or information Enables the storage of data or information to be accessed again to be accessed again
Hard Disk Drive CD / DVD DriveFloppy Disk
Flash Drive
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Permanent StoragePermanent StorageHard Disk DriveHard Disk Drive
• Stores data and program Stores data and program instructionsinstructions
Setting it all up: ErgonomicsSetting it all up: Ergonomics
• Ergonomics refers to Ergonomics refers to minimizing injury or minimizing injury or discomfort while using discomfort while using the computerthe computer
• Steps to follow:Steps to follow:– Position monitor correctlyPosition monitor correctly– Use adjustable chairUse adjustable chair– Assume proper position Assume proper position
while typingwhile typing– Take breaksTake breaks– Ensure adequate lightingEnsure adequate lighting
• Type the answer to the question on each Type the answer to the question on each slide in the text box. If you need to go back slide in the text box. If you need to go back through the slide show to find answers.through the slide show to find answers.
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Name the four major functions of a Name the four major functions of a computercomputer
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What are the devices that let you What are the devices that let you put data into the computer called ? put data into the computer called ?
Give at lease three examplesGive at lease three examples
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What devices enable the user to What devices enable the user to see or hear the processed see or hear the processed
information? Give examplesinformation? Give examples
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What’s on the front of the system What’s on the front of the system unit?unit?
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What’s on the back of the system What’s on the back of the system unit?unit?
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What’s inside the system unit?What’s inside the system unit?Label as either a storage or Label as either a storage or
processing deviceprocessing device
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What are the devices that let you What are the devices that let you store data called? Give examplesstore data called? Give examples
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Ergonomics-What can you do to Ergonomics-What can you do to reduce injury or discomfort while reduce injury or discomfort while
using a computer?using a computer?
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Additional resourceAdditional resource
• Raise your hand when you are doneRaise your hand when you are done• Once I give you the okay you can watch the videoOnce I give you the okay you can watch the video• Click on the link to view a video on the parts of a Click on the link to view a video on the parts of a
computer. Make sure you have a set of head phones firstcomputer. Make sure you have a set of head phones first• Video LinkVideo Link