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Replies to This Discussion

plz paper share krin

why  we  convert  cluster  num into sector  num  5 num

define  track  ,  sector  ,head

what is selector....

how  to find  lost chain 5 5 num

last 10  leactures  achy sy kryy ga  mostly  subjective unhi main sy tha

moaz wali file  k quiz  ka  concept  dekhy ga achy sy 

oe  subjective bhi 

All the  best 

kindly share latest mooaz file. 

My 13 August Paper:

40 MCQs(mostly from Moaaz file)

10 subjective questions. I will only mention which I remember...

Define Request Register bit(0, 1 , 2) purpose? 3 marks

What is Paging in File management system? 3 marks

What three changes will happen in system resources if interrupt 9 occurs? 3 marks

Describe certain limitations of biosdisk() function? 5 marks

Define Null modem? 5 marks

Define terms: Access rights, R , G, AVL? (from lecture # 44) 5 marks

A question related to some kind of calculation 5 marks

What will happened if we put A5 at the start of file name? 5 marks

What three changes will happen in system resources if interrupt 9 occurs? 3 marks

What will happened if we put A5 at the start of file name? 5 marks

is question ky answers bta dain plz


3 marks qs
One advantage of large cluster size 
The size of FSinfo block in FAT32. 
Difference b/w block and demand transfer mode in DMA 
5 marks qs
Describe advantages and disadvantages of FAT32 
How much control registers used in 80386 and above processors define features
Limitation of Biosdisk()

Paper of my Friend: 17-08-2017

Fat 16 and Fat32 ka difference.

Fat 32 ka advantages and Disadvantages

Data structure for memory management 

Undocumented DOS ka disadvantage

Diff Low level and Quick interupt services

Code of partition and primary partition.

Extended partition 

This Moaz File for Msqs is Corrupt please upload a new one.


how moaz file is currupt plz tell me kl mera paper ha

correct file konsi ha


System Programing

Subjective 19/08/2017


Q-Why defragmentation has high computation cost?

Q-On entry when interrupt 13H/3H is invoked. Which register contains Offset Address of data and which register contains No of Blocks to write?

Q-Describe and write steps that are presented in the figure below;


Q- Which BIOS interrupt is used for manipulating COM ports? Also mention its service numbers that are used to:

1)      Set communication parameters

2)      Output a character

3)      Get the COM port status

Q- Calculate Sector Number for the Cluster 1Ch (equivalent to 28 in decimal). Assume that:

Block per Cluster = 8

First user block number = 20


Q- Write down/draw the anatomy of NTFS based file system.

Q- What is the CHS and LBA address of MBR?


Q- How scan disk identify lost chains of clusters?

Q- Write down the basic difference between FAT32 and FAT16?

Q- Is LSN=0 and LBA=0 same thing? Why or why not?


MCQs Mooaz files sy thy ya nhi????? kindly koi bta dy....


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