Interrupt/Exception
===================

interrupt
exception
precise exception
fault
trap
difference between interrupts & exceptions
	cause
	when to handle
	mask
	context
	priority
polling (interrupt)/ spin-waiting
interrupt enable bit
Autoincrement
architectural state
internal state
interrupt[exception] vector
machine check
power failure
trace bit
sticky flag

I/O
===

asynchronous/synchronous
handshaking
protocol
ethernet
polling/interrupt/controller
Backdoor Bus 
DMA (Direct Memory Access)
I/O processor
Access method of I/O
CAM/RAM/
Random access/direct access(DASD)/sequential access
Interrupt priority Level
I/O structure
medium/device/controller
transaction
transfer/arbitration
central/distributive arbitration
master/slave
Request
Grant
SACK
data/address/control
Multiplexing
pending bus / split-transaction bus
priority arbitration unit
daisy chain
race condition