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CS401 Quiz No.3 Shared by Amina

The interrupt handler uses_______ instruction to return back to the caller
 RET
IRET
RETI
INTR

Which of the following IRQS is used for sound card or network card
IRQ4
IRQ5
IRQ6
IRQ7

In programmable interrupt controller which of the following ports is used for selectively enabling or disabling
interrupts
19
20
21
22

Using OUT instruction on parallel port results into a signal of ____for every 1 bit
0V
1V
5V
10V

Which of the following IRQs is connected to serial port COM 1?
 IRQ 4
 IRQ 5
 IRQ 6
 IRQ 7

The output of programmable timer interval connected to which line of PIC
IRQ0
IRQ1
IRQ2
IRQ3

The source registers in OUT is ?
AL or AX
BL or BX      
CL or CX  
DL or DX    

Programmable interrupt controller has two ports 20 and 21. Port 20 is the control port while port 21 is...........
The Interrupt mask register
Interrupt port
Output port
Input port

Which of the following pins of parallel por are used to carry the data from processor to the device connected through parallel port
Pin 2 to 9
Pin 10
Pin 4
Pin 10 to 25




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