5. • This is the highest-level bus that the
chipset uses to send information to
and from the processor
Processor
Bus (System
Bus)
• Higher-level architectures, employ a
dedicated bus for accessing the
system cache
Cache Bus
(Backside
Bus)
• Second-level system bus that
connects the memory subsystem to
the chipset and the processor
Memory
Bus
Bus Hierarchy
6. • For example, video cards, etc
• The two most common local
I/O buses are the VLB and
PCI.
The Local I/O
Bus (High-speed
I/O Bus)
The illustration
shows how the
various buses
connect to the
CPU.
8. wide array of
integrated
technologies on it, as
it has multiple buses
(ISA, PCI and AGP
to name a few)
onboard
The ISA slots are the black
slots on the lower portion of
the board in the image
Standards Bus Architecture