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Replies to This Discussion


95 percent mcqs come from given papers


Unable to Download rar file

file download nahi ho rhi

raheel ahmad

please zip kr k upload kro 

yr file ko win zip kr k upload kro.Access denied a rha hy



ascii extended

sp incremented by 2

zapx8 intel advanced processor extension88

the priority of irq0 intrupt is high

irq2 is derived from keyboard

question answer

q,1   device driver name,

q.2  vesa stand for,

q.3  name bios video series,

q.4  cli instruction.

q.5 multitasking operating system

q.6 parameter pascal and c

 q.7 int21 register character


mcqz   visa an orgnization 16 color bit for every pixel 5,6,5 format.

q.8 if the address of memory location num1 is 0117 andits content is0005 then after excution 

mov bx num 1 bx wil contain.

 q.9  visa service into view describe the purpose of instruction

mov ax,0x4f02

mov bx 0x4117

 q.10   display a thick counter on the top of right side of console what will the following instruction

add di,0x30

mov dh,0x07

mov word [es:8*4],timer

mov es,ax



MCQS  CS401   10/03/2015   11:00am

Mostly MCQS from Moaaz File

1          ------------- is used by debugger for temporary pausing of program during debugging.

  • INT 1        ans
  • INT 2  
  • INT 3   
  • INT 0

2          -----------------Green component of foreground color .

  • 1   ans
  • 2
  • 3
  • 4

3          ----------------Blue component of foreground color.

  • 0   ans
  • 1
  • 2
  • 3

4          In Intel there are total of ----------- possible I/O ports.

  • 65536
  • 32767
  • 1024
  • 256


5          INT 10 is used for setting the video mode.

  • INT00   ans
  • INT01
  • INT02
  • INT03

6          Which bit sets the character “blinking on the Screen”

  • 5
  • 6
  • 7
  • 8



7          In lift shift operation the lift most bit.

  • Will be dropd
  • Will go int CF
  • Will be moved to right most position
  • will always be 1

Question No 4 Answer
65536 page 106
Q. 7
Will be Droped page 14

Thanks Dear Rana

Thanks Manooo! Raheel bi.... ZIP plz


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