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Explain the 5 uses of interrupts in Interrupt Initiated I/O

Explain the 5 uses of interrupts in Interrupt Initiated I/O

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Explain the 5 uses of interrupts in Interrupt Initiated I/O

Interrupt Initiated I/0- The interface determines when the peripheral is ready for data transfer, then it generates an interrupt. After receiving the interrupt signal, the CPU stops the task it processes and service the I/O transfer. Then, it returns to its previous processing task. Interrupts require CPU immediate attention (e.g., keyboard input, power failure, completion of 1/0, etc.). These are the following uses of interrupts: As an external event notifier. This process periodically checks for external events (ex. checking keyboard input). As a completion signal. It can be a notifier when a process is complete. As a means of allocating CPU time. The time between interrupt pulses is known as a quantum, which represents the time that each program or process will have allotted to it. The interrupt as an abnormal event indicator. It uses traps or exceptions to avoid errors or illegal instructions. Software interrupts. Programs or applications with higher priority and privileges (depending on the user's and system's grant) can request a special interrupt if prompted.
Transcribed Image Text:Interrupt Initiated I/0- The interface determines when the peripheral is ready for data transfer, then it generates an interrupt. After receiving the interrupt signal, the CPU stops the task it processes and service the I/O transfer. Then, it returns to its previous processing task. Interrupts require CPU immediate attention (e.g., keyboard input, power failure, completion of 1/0, etc.). These are the following uses of interrupts: As an external event notifier. This process periodically checks for external events (ex. checking keyboard input). As a completion signal. It can be a notifier when a process is complete. As a means of allocating CPU time. The time between interrupt pulses is known as a quantum, which represents the time that each program or process will have allotted to it. The interrupt as an abnormal event indicator. It uses traps or exceptions to avoid errors or illegal instructions. Software interrupts. Programs or applications with higher priority and privileges (depending on the user's and system's grant) can request a special interrupt if prompted.
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