Interrupt Initiated IO | Daisy Chain | Parallel Priority INT || Computer Organization & Architecture
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This video lecture is about the Interrupt Initiated I/O.
Data transfer to and from peripherals may be handled in one of three possible modes:
1)Programmed I/O
2)
Interrupt-initiated I/O
3)
Direct Memory Access (DMA)
The interrupt technique requires more complex hardware and software, but makes far more efficient use of the computer’s time and capacities.
In Interrupt Initiated I/O, Flowchart for CPU Program is explained in detail. Advantages & Disadvantages of Interrupt Initiated I/O is discussed.
Implementing Priority Interrupt by Hardware, two methods are there:
1) Daisy Chain Interrupt
2) Parallel Priority Interrupt
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