Lecture 3 Flashcards
1
Q
What are the three I/O techniques?
A
Programmed, interrupt driven, DMA
2
Q
Programmed I/O technique
A
Not efficient use of processor due to idle time
3
Q
Interrupt driven I/O technique
A
Interrupts operation when I/O is ready
4
Q
DMA Direct memory Access
A
Cycle stealing for bus bypassing CPU via DMA controller
