There are two hardware interrupts in the 8086/8088. INTR, which is maskable, and NMI, which is not.
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Breaking the sequence of program
Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller
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.
hardware or software
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.
true
The hardware initiates an interrupt when it feels that the situation requires the CPU's action.
it has 256 interrupts ..
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
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.
There are six classes of interrupt: *Supervisor Call Interrupts (SVC) *I/O Interrupts *External Interrupts *Restart Interupts *Program Check Interrupt *Machine Check Interrupts