Function
Bootup
Processor
Memory
Power
Display
Hard disk
Floppy drive
Keyboard
Pointer
Audio
Status
Serial
Parallel
Infrared
PS/2 port
USB
Docking port
PCMCIA
Modules
CPU module Motherboard
BIOS IC
Floppy disk module Hard disk drive
CPU module
Motherboard
Motherboard
RAM boards
Video PCA
Battery
Motherboard
Icon PCA
AC adapter
Motherboard
LCD module
Inverter PCA
LVDS PCA
Video PCA
Motherboard Hard disk drive
Motherboard Floppy disk module
Motherboard
BIOS IC
Keyboard
Motherboard
Top case
Motherboard
Audio PCA
Icon PCA
Top case
Motherboard
Icon PCA
Motherboard
Motherboard
Motherboard
Icon PCA
Motherboard
Motherboard
Motherboard
Motherboard PCMCIA socket
Table
Roles
Main processor (MMO).
Primary system circuitry.
Code for basic system functions.
First source of
Second source of
Main processor, numeric data processor, L1 and L2 cache. Primary system circuitry.
First 32 MB of RAM.
Optional, additional RAM.
Video RAM.
Power storage.
Power supply.
AC adapter socket,
Power switch, lid switch.
PCMCIA/zoomed video controller. Display output, backlight.
Power converter for backlight.
Display switch, LVDS signal
Display/graphics controller, video RAM, LVDS processor/driver.
Hard disk controller.
Hard disk mechanism.
Floppy disk controller.
Floppy disk mechanism.
Keyboard controller.
Keyboard BIOS.
Key switches.
Keyboard controller.
Pointing stick controller (PS/2 output).
Pointing stick sensor.
Touch pad sensor, controller (PS/2 output).
Speaker amplifier, external audio jacks, headphone amplifier, zoomed video controller, volume knob.
Audio controller, wavetable. Microphone.
Speakers.
Keyboard controller.
Status panel.
Front LEDs.
I/O controller, serial connector.
I/O controller, parallel connector.
I/O controller.
Back infrared transmitter/receiver.
Front infrared transmitter/receiver.
Keyboard controller, PS/2 connector.
PS/2 processor.
Bus controller (South Bridge), USB connector.
Docking logic, docking connector.
PCMCIA controller.
PCMCIA connectors.
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