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Interrupt
What else can I help you with?
Which bus signal line allows a device to request the processor immediate attention?
Interrupt
How does a device get the cpu attention?
A device gets the CPU's attention through interrupts, which are signals sent to the processor indicating that it requires immediate attention. When a device needs to communicate or request service, it sends an interrupt request (IRQ) to the CPU. The CPU then pauses its current tasks, saves its state, and addresses the interrupt by executing the corresponding interrupt handler. Once the interrupt is serviced, the CPU resumes its previous tasks.
What is a communications line between a device and the processor?
I believe it is interrupt request line.
When a computer device is in need of immediate attention it sends the OS?
An interrupt request, or IRQ
What is interrupt vector?
When a processor is interrupted to do a particular task,Program counter should be loaded with the the address of subroutine(task).If the processor automatically generates the address then it is known as vectored interrupt.for example if 8085 microprocessor is interrupted through RST 5.5 pin,then processor multiplies 5.5 by 8 and converts it to Hex address.If user has to provide address of subroutine using CALL instruction then it is known as non vectored interrupt
If a processor requests something from a device and the device is not ready what does the device do?
To sum this up there are 3 basic components to this equation, Operating system/Drivers/Hardware. The operating system would request a certain action to be carried out to the device using the processor as a means of processing the information being sent this would then communicate with the device driver which allows the operating system and hardware to run with each other, however if the device is not ready and there is an incoming process the device will simply not be able to pursue this action and nothing will happen. EDIT: Cyris69 The Device issues a "Wait State" http://en.wikipedia.org/wiki/Wait_state
When a device needs the CPU to perform a task what does it need to do?
The device needs to signal the CPU to get its attention. It typically does this through an interrupt request line (IRQ).
What a peripheral device generates when it needs immediate attention from operating system?
When a peripheral device needs immediate attention from the operating system, it generates an interrupt signal. This signal notifies the CPU that the device requires processing, prompting the OS to pause its current tasks and address the request. The OS then determines the appropriate action to take, such as reading data from the device or handling an error. This mechanism allows for efficient and timely communication between the CPU and peripheral devices.
Why you need interrupt?
An interrupt is a signal from a device attached to a computer or from a program within the computer that causes the CPU to stop executing the current program and figure out what to do next. It enable input/output device communicate or get the attention of the processor, and execute a program that need more attention.
What is request grant in 8086?
In the 8086 microprocessor, a request grant mechanism is used for managing bus access in a system with multiple processors or devices. When a device wants to gain control of the system bus, it sends a "request" signal (RQ/GT0 or RQ/GT1) to the processor. In response, the processor may grant control by asserting a "grant" signal, allowing the requesting device to communicate on the bus for data transfer. This mechanism facilitates efficient resource sharing and multitasking in complex computing environments.
A is a clip-on device that mounts on top of the processor fingers or fins at its base pull the heat away from the processor?
A is a clip-on device that mounts on top of the processor fingers or fins at its base pull the heat away from the processor?
If the processor requests something from a device and the device is not ready the device issues a?
wait state!! :)
