3

Question 1

IVT stands for?

Answer 1

Interrupt vector table

Question 2

The interrupts reserved by processor and having special functions in 8088 are?

Answer 2

INT 0 : Division by zero
INT 1: Trap, single step interrupt
INT 2: NMI , non mask-able interrupt
INT 3: Debug interrupt
INT 4: Arithmetic overflow, change of sign bit

Question 3

To book an interrupt ——- to that interrupt?

Answer 3

We change vector corresponding

Question 4

Bios

Answer 4

Basic input output service.
They are very low level.

Question 5

DOS?

Answer 5

Operating system services.
They are high level and build upon the BIOS services.

Question 6

There is a single pin outside the processor called?

Answer 6

INT pin.
Interrupt pin

Question 7

Which pin is used by external hardware to generate interrupts?

Answer 7

INT pin is used by external hardware to generate interrupts.