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An Example of a Portable ComputingDevice
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A PDA as an Example of a Portable Computing Device
Recharger and connectionto computer for replicationRecharger and connectionto computer for replication
PDA running the Palm OSPDA running the Palm OS
Stylus for entering data into the PDA
Stylus for entering data into the PDALeather case to protect
PDA screenLeather case to protect
PDA screen
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A Notebook Computer
Touch pad buttons (2)Touch pad buttons (2)
Touch padTouch pad
Keyboard Keyboard
Power buttonPower button
Latch Latch Latch Latch
Drive bayDrive bay
Device access indicatorsDevice access indicators PC Card slotsPC Card slots
Modem connectorModem connector
USB USB
Display Display
Parallel port Parallel port
Serial port Serial port Video Video
IR portIR port
Docking Docking PS/2 PS/2 Security cable slotSecurity cable slot
AC adapter connectorAC adapter connector
Microphone Microphone
HeadphonesHeadphones
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A Security Slot and Cable
Security cable—insert in slot, and then turn key to lock after placing cable
around a stationary object
Security cable—insert in slot, and then turn key to lock after placing cable
around a stationary object
Security slotSecurity slot
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An Integrated MonitorIntegrated monitorIntegrated monitor
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An Integrated Keyboard
Fn key to access alternate functions of shared keys
Fn key to access alternate functions of shared keys
Keys with shared functionsKeys with shared functions
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An Integrated Pointing Device
Touch padTouch pad
Mouse buttonsMouse buttons
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AC Power Connections
Rectangular connector with three pinsRectangular connector with three pins
Power cord connects to power connector below, and the other end plugs into an electrical outlet
Power cord connects to power connector below, and the other end plugs into an electrical outlet
Square connector with four pinsSquare connector with four pins
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Batteries
Li-ion batteriesLi-ion batteriesNi-MH batteryNi-MH battery
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DC Controllers
Used in portable computers.Enable stepping down a higher
input voltage to a lower output voltage.
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Option Description
Suspend to RAMThe system writes data to memory and shuts everything down while keeping the data alive with a minimum amount of power from the battery.
Suspend to diskThe system writes data to disk and shuts off completely; no power is used, so no data can be lost.
Slow the processor
The system is on but not involved in heavy-duty calculations. The processor slows down to a point where it can still handle the user’s needs, but does not waste energy trying to process data at an unnecessarily high rate.
Advanced Power Management Options
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Three Examples of BGA Packaging
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Connection between docking port and
notebook computer
Connection between docking port and
notebook computer
VGA monitor portVGA monitor port
PS/2mouse port
PS/2mouse port
PS/2 keyboard portPS/2 keyboard port
Network connectionNetwork connection
Serial portSerial port Parallel portParallel port USB portUSB port
MIDI portMIDI port
Connecting External Peripherals to a Notebook Through a Docking Solution
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A Docking Station
Drive baysDrive bays
KeyboardKeyboard
Sound MIDI/GameSound MIDI/Game NetworkNetwork
ModemModem
MouseMouse MonitorMonitor
SerialSerial
PC Card slotPC Card slot
Desktop card slotsDesktop card slots
Power, volume lock, headphone, docking station release,
and microphone connections
Power, volume lock, headphone, docking station release,
and microphone connections
Monitor sits on topMonitor sits on topParallelParallel
Laptop slides in hereLaptop slides in here
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Connecting External Peripherals Directlyto a Notebook
Network connectionNetwork
connectionModem
connectionModem
connection
VGA monitorport
VGA monitorport Parallel
printer portParallel
printer port
External driveconnection
External driveconnection Power cord
connectionPower cordconnection
PS/2 portPS/2 port
Microphoneconnection
Microphoneconnection Line out
connectionLine out
connection
USB portUSB port
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Exchanging Drives in a Notebook
Drive bay can hold either the floppy disk drive or the CD-ROM
drive
Drive bay can hold either the floppy disk drive or the CD-ROM
drive
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PC Card
5 mm thick
Uses CardBus;is 54 mm wide by 85.6 mm long
Is inserted into a laptop PC Card slot
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Service Description
Socket ServicesInteracts with the system BIOS. When a PC Card is inserted or removed, Socket Services communicates that information to the system bus.
Card Services
A software layer above Socket Services that communicates with the operating system to let it know when a card is inserted or removed. It automatically assigns system resources when the card is inserted.
Card Information Structure (CIS)
Passes card information to the computer, including features and electrical characteristics, so that the computer can automatically configure the card for use.
Card and Socket Services
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PC Card UsesModemNetwork adapter (NIC)Wireless network adapterSCSI adapterUSBIEEE 1394/FireWire
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Mini-PCI Card
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Memory Used in Notebook Computers
Memory for a Compaq ArmadaMemory for a Compaq Armada
Custom memory fora portable system
Custom memory fora portable system
Custom memoryfor NEC Versa
portable computers
Custom memoryfor NEC Versa
portable computers
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CompactFlash
43mm
36 m
mUSB adapter connects the CompactFlash reader to
the computer
USB adapter connects the CompactFlash reader to
the computer
CompactFlash card fits in hereCompactFlash
card fits in here
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SmartMedia
45 m
m
37 mm
0.76 mm thick
Size areaSize areaNotch on right corner
indicates 3.3V cardNotch on right corner
indicates 3.3V card
Contact areaContact area
Label areaLabel area
Write protect areaWrite protect area
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Internal Components
Hard diskHard disk
System batterySystem battery
FanFan
Circuitry boardwith modem and
sound device connections
Circuitry boardwith modem and
sound device connections
Monitor connectionMonitor connectionSystemboard
Systemboard
System batteryconnection
System batteryconnection
ProcessorProcessor
Keyboard connectionKeyboard connection
Fan connectionFan connection
Hard disk connectionHard disk connection
PCMCIA bayPCMCIA bay
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Circuitry Board for Modem and Sound Devices
Separate circuitry board lifts off
the system board
Separate circuitry board lifts off
the system board
Connections forspeakers, microphone,
and headphones
Connections forspeakers, microphone,
and headphonesModemModem
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A Palm V
HotSync buttonHotSync button
AC power connectorAC power connectorCradleCradle
StylusStylus
PDAPDA Serial connectorSerial connector
Universal connector: • To cradle• To external keyboard
Universal connector: • To cradle• To external keyboard
Cradle connector for PDACradle connector for PDA
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A Palm V (Cont.)Contrast control IR port
power buttonContrast control IR port
power button
Scroll buttonsScroll buttons
Application buttonsApplication buttons
Graffiti writing areaGraffiti writing area
Applications areaApplications area
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A Palm m130
Universal connector: • To cradle• To external keyboard
Universal connector: • To cradle• To external keyboard
Flash media slot accepts:• SD• MMC• SDIO
Flash media slot accepts:• SD• MMC• SDIO