Transcript Portable Computing Device

An Example of a Portable Computing
Device
A PDA as an Example of a Portable
Computing Device
Recharger and connection
to computer for replication
Leather case to protect
PDA screen
Stylus for entering
data into the PDA
PDA running the Palm OS
A Notebook Computer
Latch
Latch
Power button
Keyboard
Display
Touch pad
Touch pad buttons (2)
USB
Drive bay
Modem connector
Device access indicators
PC Card slots
Parallel port
Microphone
Serial port
Video
Headphones
IR port
PS/2
Security cable slot
Docking
AC adapter connector
A Security Slot and Cable
Security slot
Security cable—insert in slot, and then
turn key to lock after placing cable
around a stationary object
An Integrated Monitor
Integrated monitor
An Integrated Keyboard
Keys with shared functions
Fn key to access alternate
functions of shared keys
An Integrated Pointing Device
Touch pad
Mouse buttons
AC Power Connections
Power cord connects to power connector below,
and the other end plugs into an electrical outlet
Square connector with four pins
Rectangular connector with three pins
Batteries
Ni-MH battery
Li-ion batteries
DC Controllers
Used
in portable computers.
Enable stepping down a higher input
voltage to a lower output voltage.
Advanced Power Management
Options
Option
Description
Suspend to RAM
The 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 disk
The 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.
Three Examples of BGA Packaging
Connecting External Peripherals to a Notebook
Through a Docking Solution
Serial port
Network connection
PS/2
mouse port
Parallel port
USB port
VGA monitor port
MIDI port
PS/2 keyboard port
Connection between
docking port and
notebook computer
A Docking Station
Laptop slides in here
Drive bays
Keyboard
Mouse
Monitor
Monitor sits on top
Parallel
Serial
PC Card slot
Network
Sound MIDI/Game
Modem
Desktop card slots
Power, volume lock,
headphone, docking station release,
and microphone connections
Connecting External Peripherals
Directly
to a Notebook
Network
connection
Modem
connection
VGA monitor
port
Microphone
connection
Parallel
printer port
External drive
connection
USB port
Line out
connection
PS/2 port
Power cord
connection
Exchanging Drives in a Notebook
Drive bay can hold either the
floppy disk drive or the CD-ROM
drive
PC Card
Is inserted into a laptop PC Card slot
5 mm thick
Uses CardBus;
is 54 mm wide by 85.6 mm long
Card and Socket Services
Service
Description
Socket Services
Interacts 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.
PC Card Uses
Modem
Network
adapter (NIC)
Wireless network adapter
SCSI adapter
USB
IEEE 1394/FireWire
Mini-PCI Card
Memory Used in Notebook
Computers
Memory for a Compaq Armada
Custom memory for
a portable system
Custom memory
for NEC Versa
portable computers
CompactFlash
CompactFlash
card fits in here
43mm
USB adapter connects the
CompactFlash reader to
the computer
SmartMedia
Notch on right corner
indicates 3.3V card
Size area
Contact area
Write protect area
Label area
37 mm
0.76 mm thick
Internal Components
Fan connection
System
board
Monitor connection
Keyboard connection
Fan
PCMCIA bay
Hard disk connection
Processor
Hard disk
Circuitry board
with modem and
sound device
connections
System battery
connection
System battery
Circuitry Board for Modem and
Sound Devices
Modem
Connections for
speakers, microphone,
and headphones
Separate circuitry
board lifts off
the system board
A Palm V
PDA
Serial connector
Cradle
AC power connector
Stylus
Cradle connector for PDA
Universal connector:
•To cradle
•To external keyboard
HotSync button
A Palm V (Cont.)
Contrast control IR port
power button
Applications area
Graffiti writing area
Scroll buttons
Application buttons
A Palm m130
Flash media slot accepts:
•SD
•MMC
•SDIO
Universal connector:
•To cradle
•To external keyboard