OS I/O Systems

maskable & non maskable interrupts

blocked & non maskable interrupts

maskable & blocked interrupts

none of the mentioned

interrupt request line

interrupt bus

interrupt receive line

interrupt sense line

busy – wait cycles wait for I/O from device

interrupt handler receives interrupts

interrupt-request line is triggered by I/O device

all of the mentioned

halts the execution of the application for an extended time

does not halt the execution of the application

does not block the interrupts

none of the mentioned

port

daisy chain

bus

cable

dma

programmed I/O

controller register

none of the mentioned

flow in

flow out

data in

data out

opposite to a sharable device

same as a sharable device

can be used concurrently by several processes

none of the mentioned

interrupt request line

device driver

interrupt handler

all of the mentioned

block stream

set of blocks

character stream

none of the mentioned