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The processor indicates to the devices that it is ready to recieve interrupts ________
- a)By enabling the interrupt request line
- b)By enabling the IRQ bits
- c)By activating the interrupt acknowledge line
- d)None of the mentioned
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
The processor indicates to the devices that it is ready to recieve int...
Answer: c
Explanation: When the processor activates the acknowledge line the devices send their interrupts to the processor.
Explanation: When the processor activates the acknowledge line the devices send their interrupts to the processor.
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The processor indicates to the devices that it is ready to recieve int...
Interrupts in Computer Systems
Interrupts are a crucial element in computer systems. They allow the CPU to pause its current task and respond to an event that has occurred.
Interrupts can be classified into two types:
1. Hardware Interrupts - These are generated by external hardware devices.
2. Software Interrupts - These are generated by software programs.
Interrupts are handled by the Interrupt Service Routine (ISR), which is a specific routine that is executed in response to a particular interrupt. The ISR handles the interrupt, saves the current state of the CPU, and performs the necessary tasks before returning to the previous state.
Interrupt Request Line (IRQ)
The Interrupt Request Line (IRQ) is a signal line that is used to request the CPU to handle an interrupt. When a hardware device needs the CPU's attention, it sends a signal to the IRQ line.
IRQ Bits
The IRQ bits are used to enable or disable specific interrupts. Each interrupt has a corresponding IRQ bit, and by setting or clearing the bit, we can enable or disable the interrupt.
Interrupt Acknowledge Line
The Interrupt Acknowledge Line (INTA) is a signal line used to indicate that the CPU has received the interrupt request and is ready to handle it.
Answer
In the given question, the correct answer is option 'C', i.e., "By activating the interrupt acknowledge line."
When the CPU is ready to receive interrupts, it activates the Interrupt Acknowledge Line (INTA) to indicate that it has received the interrupt request and is ready to handle it. This signal is sent back to the device, which generated the interrupt, and it can now send the necessary data to the CPU.
Hence, option 'C' is the correct answer.
Interrupts are a crucial element in computer systems. They allow the CPU to pause its current task and respond to an event that has occurred.
Interrupts can be classified into two types:
1. Hardware Interrupts - These are generated by external hardware devices.
2. Software Interrupts - These are generated by software programs.
Interrupts are handled by the Interrupt Service Routine (ISR), which is a specific routine that is executed in response to a particular interrupt. The ISR handles the interrupt, saves the current state of the CPU, and performs the necessary tasks before returning to the previous state.
Interrupt Request Line (IRQ)
The Interrupt Request Line (IRQ) is a signal line that is used to request the CPU to handle an interrupt. When a hardware device needs the CPU's attention, it sends a signal to the IRQ line.
IRQ Bits
The IRQ bits are used to enable or disable specific interrupts. Each interrupt has a corresponding IRQ bit, and by setting or clearing the bit, we can enable or disable the interrupt.
Interrupt Acknowledge Line
The Interrupt Acknowledge Line (INTA) is a signal line used to indicate that the CPU has received the interrupt request and is ready to handle it.
Answer
In the given question, the correct answer is option 'C', i.e., "By activating the interrupt acknowledge line."
When the CPU is ready to receive interrupts, it activates the Interrupt Acknowledge Line (INTA) to indicate that it has received the interrupt request and is ready to handle it. This signal is sent back to the device, which generated the interrupt, and it can now send the necessary data to the CPU.
Hence, option 'C' is the correct answer.
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The processor indicates to the devices that it is ready to recieve interrupts ________a)By enabling the interrupt request lineb)By enabling the IRQ bitsc)By activating the interrupt acknowledge lined)None of the mentionedCorrect answer is option 'C'. Can you explain this answer?
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