Cs401 today paper 9:30

Mcqs mostly moaz or Waqar file or Al Junaid ki file say

Subjective

LDS

REPE or REPNE

VESA instructions

Device driver

Scheduler or context

Int 21 creat or free memory

Interrupt gate descriptor

Int 10 main 10h ki service write krna the

Easy or conceptual paper tha

Handout read krnay say

Easily paper ho jahay ga

 

Cs401

Sun-sparc has _24 register are in register window.

Int 10 window scroll up window is a type of video services used in which mode _Graphics.

Illustrate the difference between in naming convection of Pascal and   c.

BIOS stands for and describe the service used is 13.

PIC stands for and describe it's instructions etc.

 

 

Cs401 paper 9:30

Mcqs mostly past files and 20% handouts se thy

Questions short long new thy like examples se ayy thy ...

Apko agar preparation kar rhy Hein tw bits ka concept dekhin  kon C bit kider use Hoti Hai like iska Kya work Hai .

Mostly questions Mei functions pouchy gye thy K Bit S ka Kya function Hai bit X ka or bit B ka .....

 

Cs401

Mcqs moazz file sy...

Int 10 services

Int 21 services

Interrupt number and handler

Why program crashed on pressing esc key

Priority interrupt

Gdt structure

5:6:5 represent

 

Cs401

 

Mcqs from moez file

Multitasking waly topic sa tha ak

Interrupt waly topic sa 2

Write register of int14 and their services

REPN and REPNZ ko describe krny ka liya aya tha

Dos interrupt sa tha ak

Ak instructions likhni int13 ki

Firmware hardware controlling sa ak question tha

File handle and error code ka register btany thy

 

 

My today's cs401 2:30pm

Objective:

Mcqs 50% Junaid aur moazz ki files se thay

Aur baki handouts se

And were very tough 😭

Subjective:

Short questions:

1) What is Dos and write command to to open file in AFD

2) bios disk services

3) how calling convention are pushed in C and Pascal

4) write instruction to define zero bit

Long questions:

1) code to write truncate file using int 21

2) difference b/w intel 386 and 8088 architecture

3) bios video service

And rest i forgot

 

 

4/30

Macqs files say thy or kuch handouts sy

Subjetive thora mushakil tha

Q1 LRU ki page replacment batni thi

Q2 read write ka sytax likhna tha

Q3 ek  program tha jis ki five problms batni thi

Q4 mein kuch values thi un ki free sapce mangemnet ot bit bit map find karna tha

Q5 virtual box mein ek code likhna tha or sreenshot lena tha ...bus yaehi questions thy

Best of luck

 

17 august 2023

cs401 paper final term, session 4:30

Objective

IDTR is structurally similar to ........................

input frequency of (PIT)..................

PIC , port ............... refered to As interrupt

in BIOS serial port services provide by ........................

in DOS string terminated  by .................. symbl

computer architecture RISC stand for............................

all register of ........... are stored is called................

Short and long question :

what is (int x 80 interrupt and where it used ?

describe structure of Global descriptor table

explain interrupt hooking and give an example

is parallel port bidirectional ?if yes ,how?

what does SCASB stand for ? why its used?

what is the perpurse of BIOS paramter block?

(mostly msqs interrupt , 9 pin DB9, IRQ 0,1,2,etc . and paraller port say related mcqs thy)

 

 

CS401 today paper

40 MCQs: Mostly from Vu Topper RM file

Subjective on important lectures

1. Name of the Pin in Port 37A used to enable triggering of ACK pin? (3)

2. Two statements were given relating SPARC processor..

• Add R2 and R3 and store their value in R4.

• Store krna tha Flag with zero value in "Next" operand. (3)

3. Describe PUSHF and POPF in detail. (5)

4. An assembly program was written in Real Mode. We were asked to write it in 32 bit Protected Mode. (5)

5. Discuss the structure of GDT. (5)

. In any assembly programming, describe how IRQ and interrupt are used to update system time. (5)

. In 'Graphics Pixel' define the representation of BH, AL, CX and DX registers. (5)

8. Name of registers for service number and file attributes, used in Create/Truncate file using INT 21. (3)

9. A question related to identifying INT and it's service (couldn't remember it fully) (3)