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There are two hardware interrupts in the 8086/8088. INTR, which is maskable, and NMI, which is not.

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How many hardware interrupts are on a standard PC?

16


Where dowe define interrupts in 8086?

Breaking the sequence of program


What chip controls hardware interrupts?

Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller


What are interrupts initiated by instructions called?

Those would be software interrupts. Interrupts initiated by the hardware would be hardware interrupts. While the socket a mouse is plugged into would use a hardware interrupt, a mouse driver would use a software interrupt.


Interrupts originate with either?

hardware or software


How the interrupt can be masked or unmasked in 8086?

The 8086 interrupt priorities are concerned ,software interrupt have the highest priority,followed by NMI ,followed by INTR.The lowest priority signals are unmaskable interrupts.


Interrupts originate with either hardware or software is this correct?

true


What are the applications of hardware interrupts in 8085?

The hardware initiates an interrupt when it feels that the situation requires the CPU's action.


How many interrupts in?

it has 256 interrupts ..


What is interrupts and list classes of interrupts in operating system?

An interrupt is an event that alters the sequence in which the processor execute instructions. It is generated by hardware of computer system. Classes of interrupt:- IBM processor has six types of interrupts. * svc interrupt(supervisor call) *input/output interrupts *external interrupts *Restart interrupts *Program check interrupt *Machine check interrupts


What is point of interruption?

If you mean hardware interrupts, it is a way for a device to notify the CPU when some event occured.Without interrupts it is necessary to poll the device constantly.


What are the main classes of interrupt?

There are six classes of interrupt: *Supervisor Call Interrupts (SVC) *I/O Interrupts *External Interrupts *Restart Interupts *Program Check Interrupt *Machine Check Interrupts