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Basic computer notions

Bus - clock/speed
CPU - register - buffer - Bus
RAM - cache - CPU
Long term storage - HDD - CDROM


Un-PC



Layered Data Storage Model:

Type
Lifetime Size
Access speed
Register CPU
clock cycles

bytes
Internal CPU
bus speed

Cache
(L1, L2)
application
time slice

page (KB)
main bus speed
RAM application
run time

1GB
0.1 main bus speed
HDD
CDROM/DVD
years
1TB
Mbps

Access speed: Latency, bandwidth
Overflow: Swap
Speed up: Cache
Transfer: chunks of data (blocks, lines, packets)



The microprocessor:
microprocessor


The memory:

RAM


Adding a subsystem:
subsystem


Managing subsystems:
managing
The computer:
computer

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