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2 System Board
Architectural View
Architectural View
Level-
Two
Cache
Main
Memory
Hard
disk
Pentium
Processor
82371 SB
PCI/ISA Bridge (PIIX3)
Processor-Local Bus
(64 bit, 60/66 MHz)
PCI Bus
(32 bit, 30/33 MHz)
ISA Bus
(16 bit, 7.5/8.33 MHz)
2
✕
IDE
controller
Interrupt
controller
Graphics
Controller
System
ROM
Flexible
disk
Serial
EEPROM
Little Ben
(HP ASIC)
PCI bus
interface
DMA
controller
ISA bus
interface
2
✕
USB
controller
37C932
Super I/O
FDD
Controller
Keyboard
controller
Parallel
controller
Mouse
controller
ISA bus
interface
2
✕
serial
controller
82439 HX
PL/PCI Bridge (TXC)
Memory
controller
PL bus
interface
Data path
PCI bus
interface
Cache
controller